Update dependencies for Neon M2

Change-Id: I70d1479287d8a8079886579132ff248720487b24
diff --git a/releng/org.eclipse.graphiti.releng/build.rmap b/releng/org.eclipse.graphiti.releng/build.rmap
index fda6d5c..df55eb1 100644
--- a/releng/org.eclipse.graphiti.releng/build.rmap
+++ b/releng/org.eclipse.graphiti.releng/build.rmap
@@ -55,7 +55,7 @@
     <rm:provider componentTypes="eclipse.feature,osgi.bundle" readerType="p2" source="false" mutable="false">

       <rm:property key="buckminster.source" value="false"/>

       <rm:property key="buckminster.mutable" value="false"/>

-      <rm:uri format="{0}/tools/orbit/downloads/drops/R20150519210750/repository/">

+      <rm:uri format="{0}/tools/orbit/downloads/drops/I20150910053315/repository/">

         <bc:propertyRef key="eclipse.downloads"/>

       </rm:uri>

     </rm:provider>

@@ -64,7 +64,7 @@
     <rm:provider componentTypes="eclipse.feature,osgi.bundle" readerType="p2" source="false" mutable="false">

       <rm:property key="buckminster.source" value="false"/>

       <rm:property key="buckminster.mutable" value="false"/>

-      <rm:uri format="{0}/eclipse/updates/4.6milestones/S-4.6M1-201508052000/">

+      <rm:uri format="{0}/eclipse/updates/4.6milestones/S-4.6M2-201509162000/">

         <bc:propertyRef key="eclipse.downloads"/>

       </rm:uri>

     </rm:provider>