AUI-1205

Hey @mjbradford89,

Attached is an update for http://issues.liferay.com/browse/AUI-1205.  I added a fix to normalize the ctrlKey  for windows and metaKey for macs.  Can you test and make sure everything still works for you guys?

I was testing Firefox on Macs and it looks like the selection change is not firing for Firefox when we deselect a date.  I am not sure if I am missing something else or not.  Can you take a look and if everything looks good you can send to @mairatma.

Please let me know if you have any questions.  Thanks!