Minor changes and improvements.
Final step for Release 1.2.
Next preparation step for release 1.2 which includes minor bugfixes and improvements.
Removed unused imports.
fix logging system add resource ctrl to scripts
Added messages to all test cases. These messages will be shown if a test case fails.
Initial check-in. A set of unit tests; not yet complete. Use runalltests.py to run all unit tests at once.