jasmine: proper dir walking

* Fixes recursive discovery of the *.spec.js files.

Signed-off-by: Adrian Pawel Baran <adrian.pawel.baran@cern.ch>
jasmine: fixture loading

* Adds the possibility to load fixtures for the test.

Signed-off-by: Adrian Pawel Baran <adrian.pawel.baran@cern.ch>
Reviewed-by: Jiri Kuncar <jiri.kuncar@cern.ch>