Add the request to the event, so it can be used for filtering in the eventlisteners

Right now the event listeners can only query on start and enddate. It
can be usefull to have the complete request object available as well, so
it's possible to filter on other variables, like a category selectbox on
the same page.
Merge branch 'master' of https://github.com/adesigns/calendar-bundle

Conflicts:
	README.md
	Resources/public/js/calendar-settings.js