initial rewrite of attendance-views to use react.js instead of CLNDR.js.

Todo List:
##System wide
- [x] Add react.js
- [] Add RxPython to the static files compiler

## CLNDR rewrite
- [x] remake CLNDR.js 
- [x] Add next and prev week functionality
- [] Set Term Limits
- [] make sure classes (on divs) are consistent between old and new calendar

## Events
- [x] Add Events
- [] Add onclick to events, selected_events array to react.js

## Roll
- [x] Add Roll view
- [] Add Roll functionality

## LeaveSlip
- [] Add Leaveslip bootstrap form
- [] Add leaveslip functionality