Gradle home dir as a parameter in gradle-maven-plugin

Change-Id: I3bb659b7cb8a7c5adf2df854665c5164237ad17d

Author: Petr Bouda

bundles/repackaged/jersey-guava/pom.xml

@@ -3,7 +3,7 @@
 
     DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 
-    Copyright (c) 2014-2015 Oracle and/or its affiliates. All rights reserved.
+    Copyright (c) 2014-2016 Oracle and/or its affiliates. All rights reserved.
 
     The contents of this file are subject to the terms of either the GNU
     General Public License Version 2 only ("GPL") or the Common Development
@@ -168,6 +168,7 @@
                                     <goal>invoke</goal>
                                 </goals>
                                 <configuration>
+                                    <gradleInstallationDir>${gradleHome}</gradleInstallationDir>
                                     <tasks>
                                         <task>deleteClasses</task>
                                         <task>generateProGuardConfig</task>