Add Preferences (encoding UTF-8) to the Oomph setup

StatechartTools.setup

@@ -68,6 +68,8 @@
         name="org.eclipse.oomph.setup.feature.group"/>
     <requirement
         name="org.eclipse.xtext.sdk.feature.group"/>
+    <requirement
+        name="org.eclipse.team.svn.feature.group"/>
     <requirement
         name="org.eclipse.m2e.feature.feature.group"/>
     <repository
@@ -2507,6 +2509,10 @@
           value="true"/>
     </setupTask>
   </setupTask>
+  <setupTask
+      xsi:type="setup:PreferenceTask"
+      key="/instance/org.eclipse.core.resources/encoding"
+      value="UTF-8"/>
   <setupTask
       xsi:type="launching:LaunchTask"
       excludedTriggers="STARTUP"