QtIFW

If there happens to be an error during fetch, reset states.

Fix some missing pieces in repo info job, we need to clear already
created tmp directories. Extend tmp dir deleter to support this...

Change-Id: Id4ff22899959e488c3346348fdf657b628a38e30
Reviewed-by: Tim Jenssen <tim.jenssen@nokia.com>
Reviewed-by: Alexander Lenhardt <alexander.lenhardt@nokia.com>