Added first working Karma test
Created first version of students service
Moved random to a service and created stubs for various factories
Migrated time functions to factory. Also, fixed radio button bug.
Backing up changes
Fixed time bug
Added backgrounds to trouble and learning portraits
Filled out teaching actions in GameActionFactory.  Make sure to fix bug in exam time
Fixed exam time bug
Refactored code.
Added Karma tests for all services and factories
Merge branch 'BR80-MakeKarmaTests'