JBIDE-11319: Url for Eclipse-SourceReferences
[JBIDE-15326] use mvn artifacts vs embedded jars
[JBIDE-15261] creating app with embedded cartridges + larger timeout

Now creating the app with embedded cartridges (was: adding cartridges to
the freshly created app). Also using specific, long timeout when
creating an app.
[JBIDE-15261] creating app with embedded cartridges + larger timeout

Now creating the app with embedded cartridges (was: adding cartridges to
the freshly created app). Also using specific, long timeout when
creating an app.

Conflicts:
	plugins/org.jboss.tools.openshift.express.client/.classpath
	plugins/org.jboss.tools.openshift.express.client/.gitignore
	plugins/org.jboss.tools.openshift.express.client/META-INF/MANIFEST.MF
	plugins/org.jboss.tools.openshift.express.client/build.properties
	plugins/org.jboss.tools.openshift.express.client/pom.xml
[JBIDE-15460] added groupId to maven-clean-plugin to prevent tycho:set-version failure
[JBIDE-15462] bumped to 2.6.0-SNAPSHOT
[JBIDE-14856] allow users to remove several connections at once