[Event] Added docblocks, isTriggered check and trigger count.
- Added docblock to the event config
- Switched to use singular naming for config files instead of plural
- Variables should be trusted instead of isTrusted, and methods should be ->isTrusted() instead of ->trusted()
- Refactored Event
- Refactored/Improved EventManager
- Refactored Observer, removed readonly
- Arr, improved normalize() docblock, changes to check for integer instead of numeric string, more precise
- Router, improved filter call
Router, update to use latest of container call()