Stylefixes in access.py and removal of self.deny calls The result of self.deny() is not very helpfull to the user, as such we should not use it if we can provide a more sensible message. Also made the document access checks use getForKeyFieldsOr404 to prevent an error page when the specified document doesn't exist. Patch by: Sverre Rabbelier

"""
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"