Update cdt.target file to point to '4.7' instead of '4.7milestones',
since the latter has been removed

Change-Id: I247c708a4e8f6948824a4a72a1e14e99fa565b60
diff --git a/releng/org.eclipse.cdt.target/cdt.target b/releng/org.eclipse.cdt.target/cdt.target
index da98cca..d0337f6 100644
--- a/releng/org.eclipse.cdt.target/cdt.target
+++ b/releng/org.eclipse.cdt.target/cdt.target
@@ -46,7 +46,7 @@
 <unit id="org.eclipse.test.feature.group" version="0.0.0"/>
 <unit id="org.eclipse.sdk.ide" version="0.0.0"/>
 <unit id="org.eclipse.equinox.executable.feature.group" version="0.0.0"/>
-<repository location="http://download.eclipse.org/eclipse/updates/4.7milestones/"/>
+<repository location="http://download.eclipse.org/eclipse/updates/4.7/"/>
 </location>
 <location includeAllPlatforms="false" includeConfigurePhase="false" includeMode="planner" includeSource="true" type="InstallableUnit">
 <unit id="org.eclipse.launchbar.feature.group" version="0.0.0"/>