Fixes and added functionality

Changelog
- event_controller.php
  * Removed trailing spaces
- event_list.php
  * Removed trailing spaces
  * Added manual update event type
  * Added Last True for any event except for the 'set feed' action
  * Changed mute time select id from action to mutetime
  * Changed Jquery click event to change event to make it work cross browser (chrome was ignoring it)
- event_model.php
  * Added support for inactive feed check
  * Added support for manual feed update check
  * Added curl placeholder value support
  * Added fallback email address support