Added cronjob monitoring to admin panel

* 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
unknown index PHP warning fix
adding some defaults on template
Merge pull request #416 from TheSerapher/issue-415

Issue 415