JBTIS-253 - update application server reference version to 3.0.0 and add...

... Luna support

The import of version 2.4.1 of the JBoss Application Server (org.jboss.ide.eclipse.as.core) caused a dependency on org.eclipse.core.runtime that was out of range.  The Luna AS is 3.0.0.

Had to add the correct associate sites for the repository facade.