QtIFW

Implement testing single repositories.

Supersedes:
- http://codereview.qt-project.org/#change,14385
- http://codereview.qt-project.org/#change,14387

Change-Id: Ib05c9e3ab0aa3ad4212c3e1e789df2e7534c393f
Reviewed-by: Tim Jenssen <tim.jenssen@nokia.com>