Releng build tagging for I201305152230
Add Nexus repository URLs to enable publishing build artifacts

Set profile build-server to download the orion client artifacts from
Nexus.

Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Bug 408140 - Test failures with incorrect git configuration- comment out the invilid user profile tests. Szymon will refactor it to use user pref later.
Add test features to p2 repository

Also remove version numbers for assembling the p2 repository to simplify
updating to a newer version.

Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Update Maven build to use Tycho 0.17

Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>