Different setup for test/development/deployment/console-use.

A different DB should be possible to be used, with a simple console given parameter to run_tests.sh

A possible solution means having a class hierarchy of TVBSettings. One base class, TestPostgreSQL, TestSqLite, Development, ConsoleUse.
and a shortcut TVBSettings = if isDevelopment() ..... DevelopementSubclass else if..... set at different entry points (e.g. mainTests.py, run.py) with the desired instance.

Change in logging configuration mechanism should be done, when this change is implemented.