#50 Added chat specific settings menu for easy property toggling and …

…removed kuulutus command:

Now bob gives chat specific setting menu with command '/asetukset'
commands and properties can be toggled on and off
functionality be easily extended later as needed
now all test modules use TestCase from django.test instead of unittest module. django.test.TestCase does not persist data to database when running tests from pycharm, while unittest.TestCase does
fixed ActivityState method 'preprocess_reply_data' default implementation to just return text given as parameter. Renamed to 'preprocess_reply_data_hook' to better convey it is not required to be addressed or implemented

M4R774 / bobweb2