XCOMMONS-282: Move from org.sonatype.aether to org.eclipse.aether
* add maven-duplicate-finder-plugin <ignoredResources> entries
XWIKI-9340: Integrate Workspaces in the default XE XAR (creating xwiki-enterprise-workspace-ui and xwiki-enterprise-workspace-ui-all).
Merge branch 'XWIKI-9340' into XWIKI-9340-merged

Conflicts:
	xwiki-enterprise-web/pom.xml
XWIKI-9340: copying the xwiki-manager-ui to xwiki-enterprise-ui (since we gonna drop xwiki-manager). This may be reverted, depending on http://xwiki.markmail.org/thread/bxjxnpahqd7cameh results.