Fix QThreadstorage test.

Fix QThreadstorage test.

- Create subdirectories containing profiles to avoid
  problems with -fast.
- Use QFINDTESTDATA to locate binary.
- Make it a console application, no Mac-bundle.
- Add error messages to the test, give it a longer time-out
  and ensure sub-process is killed if it hangs.

Change-Id: Ibc177b786c4bc8fdbc068a8c45f4801a41c9f660
Reviewed-by: Sergio Ahumada <sergio.ahumada@nokia.com>