Update to Orbit Neon build R20160520211859

Change-Id: I91e42eb1588089c172007ed5ca008ae54afde4ad
Signed-off-by: Markus Knauer <mknauer@eclipsesource.com>
diff --git a/releng/org.eclipse.rap.incubator.releng/parent/pom.xml b/releng/org.eclipse.rap.incubator.releng/parent/pom.xml
index 0ce17a8..ea1360d 100644
--- a/releng/org.eclipse.rap.incubator.releng/parent/pom.xml
+++ b/releng/org.eclipse.rap.incubator.releng/parent/pom.xml
@@ -50,7 +50,7 @@
     <repository>
       <id>orbit-dependencies-repository</id>
       <layout>p2</layout>
-      <url>http://download.eclipse.org/tools/orbit/downloads/drops/S20151204220443/repository/</url>
+      <url>http://download.eclipse.org/tools/orbit/downloads/drops/R20160520211859/repository/</url>
     </repository>
     <repository>
       <id>fileupload-dependencies-repository</id>