ADMIN- VISITS TAB

EDIT BUTTON- loads requested visits into the Listbox
LOG OUT- frmMain.signOut(student_ID); has an error
later 11/18

tutor login/logout added
ADMIN EDIT VISIT

EDIT VISIT FORM: works in theory; need to fix database issue;
LOG OUT: still doesn't work
Little fixes
FIX EDIT VISIT

Still doesn't work
FIXED EDIT VISIT

FINALLY!!!!!!!
11/21

tutor login/out done, method names now used
Merge remote-tracking branch 'origin/Matt12'

Conflicts:
	CIS411_Kris/db.mdf
	CIS411_Kris/db_log.ldf
	CIS411_Kris/frmMain.cs