SLING-3032 - [Tooling] add a 'new' wizard for creating an application
based on a maven archetype

Proper error reporting in the ChooseArchetypeWizardPage

git-svn-id: https://svn.apache.org/repos/asf/sling/branches/tooling-ide-vlt@1525602 13f79535-47bb-0310-9956-ffa450edef68
SLING-3096 - New Sling bundle wizard does not detect archetype -
drop-down is stuck with 'loading, please wait...'

Make sure the archetypes are packaged into the final jar.

git-svn-id: https://svn.apache.org/repos/asf/sling/branches/tooling-ide-vlt@1525603 13f79535-47bb-0310-9956-ffa450edef68