Solved the JSON caching problem for bulk acceptance.
This is done in the same way as it is done in AJAX calls by appending the current time as a GET argument.
Patch by: Mario Ferraro, Lennard de Rijk
Reviewed by: Lennard de Rijk
# Until model subclassing is a possibility, a mixin class is used to add
# the necessary functions that may be contributed for geographic objects.
class GeoMixin:
"""
The Geographic Mixin class provides routines for geographic objects,
however, it is no longer necessary, since all of its previous functions
may now be accessed via the GeometryProxy. This mixin is only provided
for backwards-compatibility purposes, and will be eventually removed
(unless the need arises again).
"""
pass