Updates the feature dependencies

* Re-computes the plugin requirements of each feature

* Ensure that the org.jboss.ide.eclipse.as.feature is a dependency of the
  designer, runtime and client features. Since the jboss as71 plugin seems
  to be required to connect successfully to jboss 7.1 servers its never
  actually imported explicitly by any plugin hence causes connection
  failures with eclipse installations.
Merge pull request #239 from phantomjinx/8.2.x

Updates the feature dependencies