Fix build

* Switch to Tycho 2.7.0
* No more Mylyn

Change-Id: I745f89d5136fabc260965fd431007680ac1fad8d
Signed-off-by: Alexander Kurtakov <akurtako@redhat.com>
diff --git a/build/update.site/category.xml b/build/update.site/category.xml
index 6ff439b..4b206e1 100644
--- a/build/update.site/category.xml
+++ b/build/update.site/category.xml
@@ -25,12 +25,6 @@
    <feature url="features/org.eclipse.dltk.core.index.lucene.sdk_0.0.0.jar" id="org.eclipse.dltk.core.index.lucene.sdk" version="0.0.0">
       <category name="Dynamic Languages Toolkit (DLTK)"/>
    </feature>
-   <feature url="features/org.eclipse.dltk.mylyn_0.0.0.jar" id="org.eclipse.dltk.mylyn" version="0.0.0">
-      <category name="Dynamic Languages Toolkit (DLTK)"/>
-   </feature>
-   <feature url="features/org.eclipse.dltk.mylyn.sdk_0.0.0.jar" id="org.eclipse.dltk.mylyn.sdk" version="0.0.0">
-      <category name="Dynamic Languages Toolkit (DLTK)"/>
-   </feature>
    <feature url="features/org.eclipse.dltk.core.tests_0.0.0.jar" id="org.eclipse.dltk.core.tests" version="0.0.0">
       <category name="DLTK-Tests"/>
    </feature>
diff --git a/pom.xml b/pom.xml
index 047b895..e5c1c01 100644
--- a/pom.xml
+++ b/pom.xml
@@ -39,7 +39,7 @@
 	</modules>
 
 	<properties>
-		<tycho-version>1.7.0</tycho-version>
+		<tycho-version>2.7.0</tycho-version>
 		<tycho-groupid>org.eclipse.tycho</tycho-groupid>
 		<antrun-version>1.8</antrun-version>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>