added ability to edit employee files as admin

- added edit employee window
- added edit employee related functions
- fixed ui issues with closing and text changing after searches
Merge remote-tracking branch 'origin/master'

Conflicts:
	build/classes/shiftclocker/AdminWindow.class
	build/classes/shiftclocker/Controller.class
	build/classes/shiftclocker/EmployeeManager.class