added feature for Software Updates

The application is only properly configured when built with Tycho, not
when run from within Eclipse.

To be able to do updates properly, the update sites where updates will be
available will probably have to be configured in the features.

Change-Id: Id4d3c06305211da0a91921c63f1bfecf55a1f4b3
Reviewed-on: http://gerrit.esdi-community.eu/3207
Tested-by: Jenkins <sitemple@igd.fraunhofer.de>
Reviewed-by: Simon Templer <simon.templer@igd.fraunhofer.de>