Important packaging changes.

1. Update to 0.5.0!
2. We're moving build back down to 0.7.2 for Xpand, etc.. because of performance issues with XPand 0.8.0 == up to 40x slowdown.
3. We're forcing use of 0.7.x for AMf for same reasons.
4. Rebuilt all xtext stuff for xtext 0.7.2.
diff --git a/org.eclipse.amp.amf/plugins/org.eclipse.amp.amf.gen.extras/META-INF/MANIFEST.MF b/org.eclipse.amp.amf/plugins/org.eclipse.amp.amf.gen.extras/META-INF/MANIFEST.MF
index 5eb1875..2b2800e 100644
--- a/org.eclipse.amp.amf/plugins/org.eclipse.amp.amf.gen.extras/META-INF/MANIFEST.MF
+++ b/org.eclipse.amp.amf/plugins/org.eclipse.amp.amf.gen.extras/META-INF/MANIFEST.MF
@@ -3,17 +3,17 @@
 Bundle-ManifestVersion: 2
 Bundle-SymbolicName: org.eclipse.amp.amf.gen.extras;singleton:=true
 Bundle-Name: %pluginName
-Bundle-Version: 0.2.0.qualifier
+Bundle-Version: 0.5.0.qualifier
 Bundle-Localization: plugin
 Require-Bundle: org.eclipse.emf.ecore.editor,
  org.eclipse.jdt.core;bundle-version="3.5.0",
  org.eclipse.jdt.launching;bundle-version="3.4.0",
  org.eclipse.debug.ui,
- org.eclipse.amp.amf.acore;bundle-version="0.2.0",
+ org.eclipse.amp.amf.acore;bundle-version="0.5.0",
  org.eclipse.core.runtime;bundle-version="3.5.0",
- org.eclipse.amp.amf.gen;bundle-version="0.2.0",
- org.eclipse.amp.amf.gen.ide;bundle-version="0.2.0",
- org.eclipse.amp.amf.ide;bundle-version="0.2.0"
+ org.eclipse.amp.amf.gen;bundle-version="0.5.0",
+ org.eclipse.amp.amf.gen.ide;bundle-version="0.5.0",
+ org.eclipse.amp.amf.ide;bundle-version="0.5.0"
 Export-Package: 
  metaabm.ext.tmpl,
  org.eclipse.amp.amf.gen.ext,