Added functionality to admin page:
	added create new location button
	added delete location button
	added create new holiday button
	added delete holiday button
created modal for each of these actions as well as actions inside of the sitecontroller class
Signed-off-by:Matthew Scaperoth <mscapero@gwu.edu>
added required field class and required html5 attr
commented sitecontroller update holiday function

Signed-off-by:Matthew Scaperoth <mscapero@gwu.edu>