Moved the Student cleaner to the create form such that it is always used.
Also enforced that the user picks a School type in the cleaner for the time being.
"""
Code used in a couple of places to work with the current thread's environment.
Current users include i18n and request prefix handling.
"""
try:
import threading
currentThread = threading.currentThread
except ImportError:
def currentThread():
return "no threading"