Merge pull request #120 from DenisKnoepfle/master

Edit UI test plug-in / Add some normal unit tests
Disable ui test module until display installed

Change-Id: Ib1bba8ed77a9af04f785e1cac9f1040df396c755
Signed-off-by: Denis Knoepfle <denis.knoepfle@sap.com>