Refactored the picker so that it is more generic
The picker now also works in the case the scope_path of the entity
should not be filtered on. Also, it is now easier to add new
functionality due to the fact that there is a seperate Field type
to handle it now.
Patch by: Sverre Rabbelier
#
# Copyright 2008 the Melange authors.
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"""Module contains custom Django template tags used in Melange."""