SEO and perfomance improvements | 5 most visited pages

Change-Id: I91a4ef0fa8a84406b7f3892a4b028d39d9bbd468
diff --git a/academic_material.html b/academic_material.html
index fe5ef3c..b2f41ad 100644
--- a/academic_material.html
+++ b/academic_material.html
@@ -131,25 +131,25 @@
                         	 <p><img src="images/icons/icon_slideshows.png" alt="Capella - Course esamples" class="lazyload" width="131" height="131"></p>
                             <div>
                                 <h4>Course examples</h4>
-                                <p><a href="https://download.polarsys.org/capella/publis/An_Introduction_to_Arcadia_20150115.pdf" target="_blank">Introduction to Arcadia (by Thales) <i class="fa fa-arrow-circle-right" aria-hidden="true"></i></a></p>
-                                <p><a href="http://cscerqueira.com.br/ita/model-based-systems-engineering/te265-2019/" target="_blank">MBSE course (by ITA) <i class="fa fa-arrow-circle-right" aria-hidden="true"></i></a></p>
-                                <p><a href="https://www.youtube.com/watch?v=vITV0TIeuC8&list=PLfrEYVpSGVLywKkR4UWQ-R3ISIOLY9xke" target="_blank">Innovating with Capella (41 course videos) <i class="fa fa-arrow-circle-right" aria-hidden="true"></i></a></p>
+                                <p><a href="https://download.polarsys.org/capella/publis/An_Introduction_to_Arcadia_20150115.pdf">Introduction to Arcadia (by Thales) <i class="fa fa-arrow-circle-right" aria-hidden="true"></i></a></p>
+                                <p><a href="http://cscerqueira.com.br/ita/model-based-systems-engineering/te265-2019/">MBSE course (by ITA) <i class="fa fa-arrow-circle-right" aria-hidden="true"></i></a></p>
+                                <p><a href="https://www.youtube.com/watch?v=vITV0TIeuC8&list=PLfrEYVpSGVLywKkR4UWQ-R3ISIOLY9xke">Innovating with Capella (41 course videos) <i class="fa fa-arrow-circle-right" aria-hidden="true"></i></a></p>
                             </div>
                     </div>
                     <div class="col-sm-4 col-xs-12 wow fadeInLeft animated" data-wow-duration="500ms" data-wow-delay="100ms">
                             <p><img src="images/icons/icon_sample_models.png" alt="Capella - Sample models" class="lazyload" width="131" height="131"></p>
                            <div>
                                 <h4>Sample models</h4>
-                                <p><a href="https://wiki.eclipse.org/Capella/Samples/IFE" target="_blank">In-Flight Entertainment <i class="fa fa-arrow-circle-right" aria-hidden="true"></i></a></p>
-								<p><a href="https://wiki.eclipse.org/Capella/Samples/LCTC" target="_blank">Level-crossing Traffic Control <i class="fa fa-arrow-circle-right" aria-hidden="true"></i></a></p>
+                                <p><a href="https://wiki.eclipse.org/Capella/Samples/IFE">In-Flight Entertainment <i class="fa fa-arrow-circle-right" aria-hidden="true"></i></a></p>
+								<p><a href="https://wiki.eclipse.org/Capella/Samples/LCTC">Level-crossing Traffic Control <i class="fa fa-arrow-circle-right" aria-hidden="true"></i></a></p>
                             </div>
                     </div>
                     <div class="col-sm-4 col-xs-12 wow fadeInLeft animated" data-wow-duration="500ms" data-wow-delay="200ms">
                             <p><img src="images/icons/icon_getting_started.png" alt="Capella - Guides" class="lazyload" width="131" height="131"></p>
                             <div>
                                 <h4>Guides</h4>
-                                <p><a href="https://github.com/eclipse/capella/blob/master/doc/plugins/org.polarsys.capella.ui.doc/html/Installation Guide/How to install Capella and Addons.mediawiki#table-of-contents" target="_blank">Capella installation <i class="fa fa-arrow-circle-right" aria-hidden="true"></i></a></p>
-                                <p><a href="https://esd.sutd.edu.sg/40014-capella-tutorial/index.html" target="_blank">Toy Catapult tutorial <i class="fa fa-arrow-circle-right" aria-hidden="true"></i></a></p>
+                                <p><a href="https://github.com/eclipse/capella/blob/master/doc/plugins/org.polarsys.capella.ui.doc/html/Installation Guide/How to install Capella and Addons.mediawiki#table-of-contents">Capella installation <i class="fa fa-arrow-circle-right" aria-hidden="true"></i></a></p>
+                                <p><a href="https://esd.sutd.edu.sg/40014-capella-tutorial/index.html">Toy Catapult tutorial <i class="fa fa-arrow-circle-right" aria-hidden="true"></i></a></p>
                             </div>
                     </div>
                 </div>
@@ -177,7 +177,7 @@
 				</div>
 				<div class="row">
 					<div class="col-sm-4 col-sm-offset-2 col-xs-12 wow fadeInLeft" data-wow-duration="500ms" data-wow-delay="0ms">
-						<p><a href="https://www.elsevier.com/books/model-based-system-and-architecture-engineering-with-the-arcadia-method/voirin/978-1-78548-169-7" target="_blank"><img src="images/thumbs/thumb_book_jlvoirin.png" alt="Model-based System<br>and Architecture Engineering with the Arcadia Method" class="lazyload" width="311" height="350"></a></p>
+						<p><a href="https://www.elsevier.com/books/model-based-system-and-architecture-engineering-with-the-arcadia-method/voirin/978-1-78548-169-7"><img src="images/thumbs/thumb_book_jlvoirin.png" alt="Model-based System<br>and Architecture Engineering with the Arcadia Method" class="lazyload" width="311" height="350"></a></p>
 						<div>
 							<h6 class="text-uppercase txt_lightest_grey txt_weight_300">Jean-Luc Voirin</h6>
 							<h4>Model-based System<br>and Architecture Engineering<br>with the Arcadia Method</h4>
@@ -185,7 +185,7 @@
 						</div>
 					</div>
 					<div class="col-sm-4 col-xs-12 wow fadeInLeft" data-wow-duration="500ms" data-wow-delay="300ms">
-					   <p><a href="https://www.elsevier.com/books/systems-architecture-modeling-with-the-arcadia-method/roques/978-1-78548-168-0" target="_blank"><img src="images/thumbs/thumb_book_proques.png" alt="Systems Architecture Modeling with the Arcadia Method - A Practical Guide to Capella Modeling Tool" class="lazyload" width="311" height="350"></a></p>
+					   <p><a href="https://www.elsevier.com/books/systems-architecture-modeling-with-the-arcadia-method/roques/978-1-78548-168-0"><img src="images/thumbs/thumb_book_proques.png" alt="Systems Architecture Modeling with the Arcadia Method - A Practical Guide to Capella Modeling Tool" class="lazyload" width="311" height="350"></a></p>
 					   <div>
 							<h6 class="text-uppercase txt_lightest_grey txt_weight_300">Pascal Roques</h6>
 							<h4>Systems Architecture Modeling with the Arcadia Method - A Practical Guide to Capella Modeling Tool</h4>
diff --git a/arcadia_capella_sysml_tool.html b/arcadia_capella_sysml_tool.html
index f0d8e0b..8f4c086 100644
--- a/arcadia_capella_sysml_tool.html
+++ b/arcadia_capella_sysml_tool.html
@@ -467,8 +467,7 @@
 								Diagrams only present the dependencies between functions with
 								absolutely no semantics of control. The rationale for this
 								choice is explained in this <a
-									href="http://download.polarsys.org/capella/publis/INCOSE_Capella_SysML_paper.pdf"
-									target="_blank">dedicated paper</a>.
+									href="http://download.polarsys.org/capella/publis/INCOSE_Capella_SysML_paper.pdf">dedicated paper</a>.
 							</p>
 
 							<p class="wow fadeInUp" data-wow-delay=".1s">Allocating
@@ -872,8 +871,7 @@
 									no control nodes such as Join, Fork, etc.. The detailed
 									rationale for the absence of control flows in Capella dataflow
 									is explained in <a
-									href="http://download.polarsys.org/capella/publis/INCOSE_Capella_SysML_paper.pdf"
-									target="_blank">this dedicated paper</a>.
+									href="http://download.polarsys.org/capella/publis/INCOSE_Capella_SysML_paper.pdf">this dedicated paper</a>.
 								</li>
 								<li>The relationship between a function and its subfunctions is a direct containment
 								</li>
diff --git a/capella_days.html b/capella_days.html
index 9c65e07..5e73786 100644
--- a/capella_days.html
+++ b/capella_days.html
@@ -115,7 +115,7 @@
 			</div>
 			<div class="row wow fadeInDown" data-wow-delay=".3s">
 				<h2>Stay tuned!</h2>
-				<p>To be informed about next edition, follow us on <a href="https://www.linkedin.com/in/capella-mbse-tool/" target="_blank">LinkedIn</a> and then ask to be added to the mailing list.</p>
+				<p>To be informed about next edition, follow us on <a href="https://www.linkedin.com/in/capella-mbse-tool/">LinkedIn</a> and then ask to be added to the mailing list.</p>
 			</div>
 			<div class="row wow fadeInDown" data-wow-delay=".3s">
 				<h2>Next edition</h2>
@@ -128,8 +128,8 @@
 				<ul>
 					<li><a href="capella_days_2020.html">Capella Days Online 2020</a></li>
 					<li><a href="capella_day_munich_2019.html" >Capella Day Munich 2019</a></li>
-					<li><a href="https://wiki.eclipse.org/Capella_Day_Stuttgart_2018" target="_blank">Capella Day Stuttgart 2018</a></li>
-					<li><a href="https://www.eclipsecon.org/france2017/capella-day" target="_blank">Capella Day Toulouse 2017</a></li>
+					<li><a href="https://wiki.eclipse.org/Capella_Day_Stuttgart_2018">Capella Day Stuttgart 2018</a></li>
+					<li><a href="https://www.eclipsecon.org/france2017/capella-day">Capella Day Toulouse 2017</a></li>
 				</ul>
 			</div>
 			</div>
diff --git a/capella_days_2021.html b/capella_days_2021.html
index fa63dfb..3733eb8 100644
--- a/capella_days_2021.html
+++ b/capella_days_2021.html
@@ -107,12 +107,12 @@
 			<div class="row wow fadeInDown" data-wow-delay=".3s">
 				<h2 class="title">Previous editions</h2>
 				<ul>
-					<li><a href="capella_days_2020.html" target="_blank">Capella Days Online 2020</a></li>
-					<li><a href="capella_day_munich_2019.html" target="_blank">Capella Day
+					<li><a href="capella_days_2020.html">Capella Days Online 2020</a></li>
+					<li><a href="capella_day_munich_2019.html">Capella Day
 							Munich 2019</a></li>
-					<li><a href="https://wiki.eclipse.org/Capella_Day_Stuttgart_2018" target="_blank">Capella Day
+					<li><a href="https://wiki.eclipse.org/Capella_Day_Stuttgart_2018">Capella Day
 							Stuttgart 2018</a></li>
-					<li><a href="https://www.eclipsecon.org/france2017/capella-day" target="_blank">Capella Day Toulouse
+					<li><a href="https://www.eclipsecon.org/france2017/capella-day">Capella Day Toulouse
 							2017</a></li>
 				</ul>
 			</div>
@@ -124,8 +124,8 @@
 				<h2 class="title">Organized by</h2>
 				<p>Capella Days 2021 was organized by Obeo, in partnership with Thales.</p>
 				<p></p>
-				<a href="https://www.obeosoft.com/en/capella-professional-offer" target="_blank"><img src="images/logo_obeo.png" width="280"></a>
-				<a href="industry-consortium/thales.html" target="_blank"><img src="images/logo_thales.png" width="280"></a>
+				<a href="https://www.obeosoft.com/en/capella-professional-offer"><img src="images/logo_obeo.png" width="280"></a>
+				<a href="industry-consortium/thales.html"><img src="images/logo_thales.png" width="280"></a>
 			</div>
 		</div>
 	</section>
@@ -136,19 +136,19 @@
 				<p>Capella Days 2021 was sponsored by vibrant members of the Capella ecosystem: </p>
 				<p></p>
 				<div class="col-md-12 text-center">
-					<a href="https://www.all4tec.com/" target="_blank"><img src="images/capella_days_2021/sponsors/logo_all4tec.png" width="250"></a>
-					<a href="https://capella.artal-group.com/" target="_blank"><img src="images/capella_days_2021/sponsors/logo_artal.png" width="250"></a>
-					<a href="http://www.pgmse.com" target="_blank"><img src="images/capella_days_2021/sponsors/logo_pgm.png" width="200"></a>
+					<a href="https://www.all4tec.com/"><img src="images/capella_days_2021/sponsors/logo_all4tec.png" width="250"></a>
+					<a href="https://capella.artal-group.com/"><img src="images/capella_days_2021/sponsors/logo_artal.png" width="250"></a>
+					<a href="http://www.pgmse.com"><img src="images/capella_days_2021/sponsors/logo_pgm.png" width="200"></a>
 				</div>
 				<div class="col-md-12 text-center">
-					<a href="https://www.prfc.fr/" target="_blank"><img src="images/capella_days_2021/sponsors/logo_prfc.png" width="220"></a>
-					<a href="https://www.samares-engineering.com/fr/" target="_blank"><img src="images/capella_days_2021/sponsors/logo_samares.png" width="250"></a>
-					<a href="https://www.pure-systems.com/" target="_blank"><img src="images/capella_days_2021/sponsors/logo_pure-systems.png" width="250"></a>
+					<a href="https://www.prfc.fr/"><img src="images/capella_days_2021/sponsors/logo_prfc.png" width="220"></a>
+					<a href="https://www.samares-engineering.com/fr/"><img src="images/capella_days_2021/sponsors/logo_samares.png" width="250"></a>
+					<a href="https://www.pure-systems.com/"><img src="images/capella_days_2021/sponsors/logo_pure-systems.png" width="250"></a>
 				</div>
 				<div class="col-md-12 text-center">
-					<a href="https://www.plm.automation.siemens.com/global/en/products/collaboration/product-architecture.html" target="_blank"><img src="images/logos/adopters/logo_siemens.jpg" width="230"></a>
-					<a href="https://www.sodiuswillert.com/" target="_blank"><img src="images/capella_days_2020/logo_sodius.png" width="280"></a>
-					<a href="https://www.reusecompany.com/" target="_blank"><img src="images/logos/adopters/logo_thereusecompany.png" width="280"></a>
+					<a href="https://www.plm.automation.siemens.com/global/en/products/collaboration/product-architecture.html"><img src="images/logos/adopters/logo_siemens.jpg" width="230"></a>
+					<a href="https://www.sodiuswillert.com/"><img src="images/capella_days_2020/logo_sodius.png" width="280"></a>
+					<a href="https://www.reusecompany.com/"><img src="images/logos/adopters/logo_thereusecompany.png" width="280"></a>
 				</div>
 			</div>
 		</div>
diff --git a/download.html b/download.html
index a6effe0..e7a6de4 100644
--- a/download.html
+++ b/download.html
@@ -120,12 +120,12 @@
                         <figure class="wow fadeInLeft animated" data-wow-duration="300ms" data-wow-delay="300ms">
                             <div>
                                 <h4 class="txt_white">Resources</h4><br>
-           	     				<p><a class="wow fadeInUp animated" data-wow-delay=".2s" href="https://github.com/eclipse/capella/blob/master/doc/plugins/org.polarsys.capella.ui.doc/html/Installation Guide/How to install Capella and Addons.mediawiki#table-of-contents" target="_blank">Installation <i class="fa fa-external-link" aria-hidden="true"></i></a></p>
-           	     				<p><a class="wow fadeInUp animated" data-wow-delay=".3s" href="getstarted.html" target="_blank">Getting Started <i class="fa fa-external-link" aria-hidden="true"></i></a></p>
-           	     				<p><a class="wow fadeInUp animated" data-wow-delay=".4s" href="https://github.com/eclipse/capella" target="_blank">Source Code <i class="fa fa-github" aria-hidden="true"></i></a></p>
+           	     				<p><a class="wow fadeInUp animated" data-wow-delay=".2s" href="https://github.com/eclipse/capella/blob/master/doc/plugins/org.polarsys.capella.ui.doc/html/Installation Guide/How to install Capella and Addons.mediawiki#table-of-contents">Installation <i class="fa fa-external-link" aria-hidden="true"></i></a></p>
+           	     				<p><a class="wow fadeInUp animated" data-wow-delay=".3s" href="getstarted.html">Getting Started <i class="fa fa-external-link" aria-hidden="true"></i></a></p>
+           	     				<p><a class="wow fadeInUp animated" data-wow-delay=".4s" href="https://github.com/eclipse/capella">Source Code <i class="fa fa-github" aria-hidden="true"></i></a></p>
 								<p><a class="wow fadeInUp animated" data-wow-delay=".5s" href="support.html" target="_self">Documentation <i class="fa fa-fexternal-link" aria-hidden="true"></i></a></p>
-								<p><a class="wow fadeInUp animated" data-wow-delay=".6s" href="https://github.com/eclipse/capella/wiki" target="_blank">Nightly Versions** <i class="fa fa-external-link" aria-hidden="true"></i></a></p>
-								<p><a class="wow fadeInUp animated" data-wow-delay=".7s" href="https://github.com/eclipse/capella/releases" target="_blank">Previous Versions <i class="fa fa-external-link" aria-hidden="true"></i></a></p>
+								<p><a class="wow fadeInUp animated" data-wow-delay=".6s" href="https://github.com/eclipse/capella/wiki">Nightly Versions** <i class="fa fa-external-link" aria-hidden="true"></i></a></p>
+								<p><a class="wow fadeInUp animated" data-wow-delay=".7s" href="https://github.com/eclipse/capella/releases">Previous Versions <i class="fa fa-external-link" aria-hidden="true"></i></a></p>
                             </div>
                         </figure>
                     </div>
@@ -139,9 +139,9 @@
                                 </p>
                                 <p class="txt_white wow fadeInUp animated" data-wow-delay=".3s">In-Flight Entertainment (IFE)<br>
                                     <a href="https://download.eclipse.org/capella/samples/5.1.0/InFlightEntertainmentSystem.zip" onClick="ga('send', 'event', 'Capella', '5.1.x', 'IFE');">EN <i class="fa fa-download" aria-hidden="true"></i></a> - 
-                                    <a href="resources/doc/IFE_XHTML_DocGen_5.1.0_for_capella_5.1.0/output/index.html" target="_blank">Doc <i class="fa fa-html5" aria-hidden="true"></i></a>
+                                    <a href="resources/doc/IFE_XHTML_DocGen_5.1.0_for_capella_5.1.0/output/index.html">Doc <i class="fa fa-html5" aria-hidden="true"></i></a>
                                 </p>
-           	     				<p><a class="wow fadeInUp animated" data-wow-delay=".3s" href="http://download.eclipse.org/capella/samples/?d" target="_blank">Samples for older releases <i class="fa fa-external-link" aria-hidden="true"></i></a></p>
+           	     				<p><a class="wow fadeInUp animated" data-wow-delay=".3s" href="http://download.eclipse.org/capella/samples/?d">Samples for older releases <i class="fa fa-external-link" aria-hidden="true"></i></a></p>
            	     			</div>
                         </figure>
                     </div>
@@ -165,7 +165,7 @@
                		<p><a class="wow fadeInDown btn btn-default" data-wow-delay=".6s" href="addons.html"><i class="fa fa-puzzle-piece" aria-hidden="true"></i> Discover all the available add-ons</a></p>
                		
                     <p class="wow fadeInDown" data-wow-delay=".5s"><br>
-                    To install Capella extensions have a look to the <a href="https://github.com/eclipse/capella/blob/master/doc/plugins/org.polarsys.capella.ui.doc/html/Installation%20Guide/How%20to%20install%20Capella%20and%20Addons.mediawiki#Configuration_and_Extensibility" target="_blank">installation procedure</a></p>
+                    To install Capella extensions have a look to the <a href="https://github.com/eclipse/capella/blob/master/doc/plugins/org.polarsys.capella.ui.doc/html/Installation%20Guide/How%20to%20install%20Capella%20and%20Addons.mediawiki#Configuration_and_Extensibility">installation procedure</a></p>
                     <br>
                     <br>
                     <br>
@@ -233,10 +233,10 @@
                         <figure class="wow fadeInLeft animated" data-wow-duration="300ms" data-wow-delay="300ms">
                             <div>
                                 <h4 class="txt_white">Resources</h4><br>
-           	     				<p><a class="wow fadeInUp animated" data-wow-delay=".6s" href="https://wiki.eclipse.org/Capella/Studio" target="_blank">Documentation <i class="fa fa-external-link" aria-hidden="true"></i></a></p>
-								<p><a class="wow fadeInUp animated" data-wow-delay=".6s" href="https://github.com/eclipse/capella-studio" target="_blank">Source Code <i class="fa fa-github" aria-hidden="true"></i></a></p>
-								<p><a class="wow fadeInUp animated" data-wow-delay=".6s" href="https://download.eclipse.org/capella/capellastudio/products/nightly/?d" target="_blank">Nightly Versions** <i class="fa fa-external-link" aria-hidden="true"></i></a></p>
-								<p><a class="wow fadeInUp animated" data-wow-delay=".6s" href="https://download.eclipse.org/capella/capellastudio/products/release/?d" target="_blank">Previous Versions <i class="fa fa-external-link" aria-hidden="true"></i></a></p>
+           	     				<p><a class="wow fadeInUp animated" data-wow-delay=".6s" href="https://wiki.eclipse.org/Capella/Studio">Documentation <i class="fa fa-external-link" aria-hidden="true"></i></a></p>
+								<p><a class="wow fadeInUp animated" data-wow-delay=".6s" href="https://github.com/eclipse/capella-studio">Source Code <i class="fa fa-github" aria-hidden="true"></i></a></p>
+								<p><a class="wow fadeInUp animated" data-wow-delay=".6s" href="https://download.eclipse.org/capella/capellastudio/products/nightly/?d">Nightly Versions** <i class="fa fa-external-link" aria-hidden="true"></i></a></p>
+								<p><a class="wow fadeInUp animated" data-wow-delay=".6s" href="https://download.eclipse.org/capella/capellastudio/products/release/?d">Previous Versions <i class="fa fa-external-link" aria-hidden="true"></i></a></p>
                             </div>
                         </figure>
                     </div>
@@ -348,7 +348,7 @@
                 <div class="row">
                 	<div class="col-md-offset-2 col-md-4 wow fadeInLeft animated">
 						<p>Use the public forum to communicate with <br>the Capella worldwide community</p>
-                        <p><a class="wow fadeInUp animated btn btn-default animated" data-wow-delay=".6s" href="https://forum.mbse-capella.org/" target="_blank">Capella Forum</a></p>
+                        <p><a class="wow fadeInUp animated btn btn-default animated" data-wow-delay=".6s" href="https://forum.mbse-capella.org/">Capella Forum</a></p>
                     </div>
                     <div class="col-md-4 wow fadeInUp animated animated">
                         <p>Discover the services provided by <br>the Capella ecosystem</p>