Add automatic fetch of results in navigator (#116)

The main run results are now automatically fetched if they are not
present already. This also solved the label issue of nodes (see #18).

Change-Id: I02583fa477720ba61e97e0f5c2a97987193325da
Signed-off-by: Denis Knoepfle <denis.knoepfle@sap.com>
Merge pull request #131 from DenisKnoepfle/master

Add automatic fetch of results in navigator (#116)