* [ADDED] new monitoring method : endCronjob
* [IMPROVED] Use newly added error codes
* [ADDED] mail notifications, enabled by default
* [ADDED] cron disable on fatal errors with exit code != 0
* [ADDED] Command line swtich: -f = Force running crons even if disabled
* [ADDED] Disabled status in monitoring site
This will improve error handling in our cronjobs. Fatal errors now
require manual intervention by explicityly running crons with the force
option (`-f`). Until they are forced to run, crons will stay disabled.
Fixes#773 once merged
* Added monitoring class to deal with monitoring events
* Added event calls to all important cronjobs
* Added cron_end include file for monitoring cleanups on successful runs
* Added Monitoring to autoloader
* Modified account page to check for running auto_payout in monitoring
* Added monitoring to Navigation bar
* Added monitoring controller page
Fixes#415
