Update dependencies for Mars RC3

Change-Id: I4b23b9062edde7f2c0063f28b2d75ebeaa043425
diff --git a/releng/org.eclipse.graphiti.releng/build.rmap b/releng/org.eclipse.graphiti.releng/build.rmap
index d75968e..5e47767 100644
--- a/releng/org.eclipse.graphiti.releng/build.rmap
+++ b/releng/org.eclipse.graphiti.releng/build.rmap
@@ -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/4.5milestones/S-4.5RC2a-201505222000/">

+      <rm:uri format="{0}/eclipse/updates/4.5milestones/S-4.5RC3-201505280700/">

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

       </rm:uri>

     </rm:provider>

@@ -82,14 +82,14 @@
     <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}/modeling/emf/transaction/updates/milestones/S201505060251/">

+      <rm:uri format="{0}/modeling/emf/transaction/updates/milestones/S201506010221/">

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

       </rm:uri>

     </rm:provider>

     <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}/modeling/emf/validation/updates/milestones/S201505060134/">

+      <rm:uri format="{0}/modeling/emf/validation/updates/milestones/S201505312255/">

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

       </rm:uri>

     </rm:provider>