fix(queue_manager): better log messages
fix(queue_manager): adds default timestamp to utc if none in incident
feat(api): converting event listener to api service

* Removes standalone listener
* Removes Twisted library
* Adds gevent
* Add INCIDENT_PARAMS in base config for future upgrade
fix(actions): remove print and use logger.error()
fix(comments): remove unnecessary print statement
fix(test): removes print statement
feat(app): event action occurs once per timer threshold

* Also adds with EventAction.is_triggered in mode
fix(models): using @property decorators instead of explicit call
fix(app): removes tastypie
fix(app): adds LOGIN_URL to settings.base
feat(models): adds is_suppressed field to Incident model

part of  #46
fix(app): adds django-braces==1.4.0 and updates versions for gevent==1.0.1 and gunicorn==18.0
test(factories): adds User and Suppressor factories

part of #46
test(rules_engine): tests suppression pipeline

part of #46
feat(rules_engine): adds support for suppression of incidents

fixes #46
feat(audit): adds initial strucute for audit logs

for #47 #46
feat(app): addds initial DB migration scripts

closes #48
fix(app): adds mock==1.0.1
feat(app): adds rules_engine, audit to settings.base

part of #46
fix(test): adding migrations to travis