Changed deadline to datetime, added validations, fixed seeds, fixed bugs
Fixed little bug in event controller.
Forgot to delete an unneeded line of code.
Small refactoring
Added 'to' field to spoodle_date, renamed 'datetime' to 'from'
Added validations
Added weight to spoodle_date, some refac's
Availabilities are back, yay. A user can now weight every spoodle_date he assigns to.
Events now select a date when passing the deadline. Lot of bugs, or missing checks
Fixed some stuff I destroyed while merging (commit #ab080c6 ) - mainly
permitting post params.
Finally working, :definite_date getter is self updating now
Merge remote-tracking branch 'origin/dev' into feature/event_termination

Conflicts:
	app/controllers/events_controller.rb
Merge remote-tracking branch 'origin/feature/event_termination' into feature/bootstrap

Conflicts:
	app/views/events/index.html.erb
	app/views/events/show.html.erb
	app/views/home/index.html.erb
	app/views/spoodle_dates/_spoodle_date.html.erb