Bug 565250 - Switch to use Tycho 2.0.0 snapshot

Switch tycho-eclipserun-plugin EE to JavaSE-11

Change-Id: Ica6036fd16610ad73e1eae0314dd5e75b4d48f80
Signed-off-by: Alexander Kurtakov <akurtako@redhat.com>
diff --git a/eclipse-platform-parent/pom.xml b/eclipse-platform-parent/pom.xml
index 40bdcbd..9acd290 100644
--- a/eclipse-platform-parent/pom.xml
+++ b/eclipse-platform-parent/pom.xml
@@ -384,7 +384,7 @@
           <!-- this is actually present in any 0.14+ version -->
           <version>${tycho.version}</version>
           <configuration>
-            <executionEnvironment>JavaSE-1.8</executionEnvironment>
+            <executionEnvironment>JavaSE-11</executionEnvironment>
             <repositories>
               <repository>
                 <id>eclipse</id>
@@ -392,11 +392,6 @@
                 <url>${eclipserun-repo}</url>
               </repository>
             </repositories>
-            <!--
-              This is to fix some lucene 3.x compatibility issues.
-              Required for 4.2 and earlier. Not for 4.3 and later.
-              <argLine>-Dhelp.lucene.tokenizer=standard</argLine>
-            -->
           </configuration>
         </plugin>
         <plugin>