Updates GemFile, application.js and application.css to utilize Zebra-Datepicker
Updates file so that Datepicker works, but always displays.
Adds working Datepicker, but unable to modify the time
Adds jquery.datetimepicker.js to attempt to fulfill date time issue, being told that it is not a function.
Datetimepicker works, but argument out of range error on submit
Updates form to try new ways of getting datetime to work
Implements full Date Time Picker
Merges datetime branch into almostdone.

Conflicts:
	app/assets/stylesheets/application.css
	app/views/rides/_form.html.erb
	db/schema.rb
Adds verification that user is signed in before checking if the account is
disabled before showing ride results.  Also adds cut label for seats
availabe from the merge.
Fixes validation issue for user in the ride controller.