Merge branch 'stable-4.0'

* stable-4.0:
  Prepare 4.0.1-SNAPSHOT builds
  JGit v4.0.0.201506090130-r
  Update build to use Tycho 0.23

Change-Id: I732b601c198ad1a50aa7ba3c1d1fb516b10912b5
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
diff --git a/org.eclipse.jgit.packaging/pom.xml b/org.eclipse.jgit.packaging/pom.xml
index a017891..095d46f 100644
--- a/org.eclipse.jgit.packaging/pom.xml
+++ b/org.eclipse.jgit.packaging/pom.xml
@@ -59,7 +59,7 @@
   <name>JGit Tycho Parent</name>
 
   <properties>
-    <tycho-version>0.22.0</tycho-version>
+    <tycho-version>0.23.0</tycho-version>
     <tycho-extras-version>${tycho-version}</tycho-extras-version>
   </properties>
 
diff --git a/pom.xml b/pom.xml
index 63987f3..91f279b 100644
--- a/pom.xml
+++ b/pom.xml
@@ -207,7 +207,7 @@
     <slf4j-version>1.7.2</slf4j-version>
     <log4j-version>1.2.15</log4j-version>
     <maven-javadoc-plugin-version>2.10.1</maven-javadoc-plugin-version>
-    <tycho-extras-version>0.22.0</tycho-extras-version>
+    <tycho-extras-version>0.23.0</tycho-extras-version>
 
     <!-- Properties to enable jacoco code coverage analysis -->
     <sonar.core.codeCoveragePlugin>jacoco</sonar.core.codeCoveragePlugin>