--- Removed all callback functions from 'jobs.py' and put them in a new file '/awx/main/tasks/callback.py'
--- Modified Unit tests unit moved
--- Moved 'update_model' from jobs.py to /awx/main/utils/update_model.py
--- Added 3 new sub-package : awx.main.tasks.system , awx.main.tasks.jobs , awx.main.tasks.receptor
--- Modified the functional tests and unit tests accordingly