Update tycho version to 0.14.1

Tycho 0.14.1 enforces that artifactId and feature/bundle SymbolicName
must match, hence follow recommended migration practice and change
groupId of feature projects in order not to change the feature names as
this would require a feature migration.

Also migrate the p2 repository build from the deprecated packaging type
eclipse-update-site to packaging type eclipse-repository.

Change-Id: I99fc6c2bbb20efbd6514bdd9940f3535707c21bc
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
16 files changed