Send out a Notification upon creation of a new Request entity.
The receivers are specified by the corresponding Role logic this Role Request is for. Currently Organization and Club Administrators will receive "new request" messages about respectively Mentor and Club Membership requests.
Fixes Issue 442.
include AUTHORS
include INSTALL
include LICENSE
recursive-include docs *
recursive-include scripts *
recursive-include django/conf/locale *
recursive-include django/contrib/admin/templates *
recursive-include django/contrib/admin/media *
recursive-include django/contrib/comments/templates *
recursive-include django/contrib/sitemaps/templates *