Dispatch an event when a content item is parsed.
The validation of content items now happens through an event listener.
Validation should have the highest prio.
Cleaned up the constructor of the validator class.
Accessors aren't used anymore.
The formatting of the body and excerpt now happens through an event listener.
Removed unneeded variable.
Fixed an issue with Phake and Validator.
Merge pull request #22 from RobinvdVleuten/events

Add support for events for better plugin management