Add method to access current problem under investigation

Change-Id: Ic2b00664cf93bd99f0aa32640f82edb71bbb6415
Signed-off-by: Denis Knoepfle <denis.knoepfle@sap.com>
Simplify selection of current problem in run job

Now the display job can start at any moment during the diagnosis and
show the current progress. Hence it can be resumed after a restart of
Eclipse.

Change-Id: I545d978141efe2202c6705e1a3464d9665eb9224
Signed-off-by: Denis Knoepfle <denis.knoepfle@sap.com>
Enhance Active Run View and add some basic prerequisites
Merge pull request #138 from DenisKnoepfle/master

Facilitate access to current DiagnosisProgress / Enhance Active Run View