pylint convention fixes
ContactField: unicode -> text
Groups: unicode_with_date -> name_with_date
Bugfix: Import PermissionDenied in decorators
Moved generic view helpers in generic.py
Moved Choices views in their own file
Moved ContactField views in their own file
Moved GroupNews views in their own file
Moved media file handling views in their own file
Removed slow member count on the group list
Moved Log view in its own file
Moved ContactGroup views in their own file
Moved Contact views in their own file
Move iscalaneous view out of __init__ into misc.py