--Mediator error display format bug with api.
--Mediator authorization changed to mediators from districts and
mediators assigned to user villages. Earlier mediator autorization gets
mediators who are assigned to user villages.
--Saving district automatically for old coco since we got rid of
district save from forms.
--catching the exception in message in pma savw
Merge pull request #252 from digitalgreenorg/coco_pma_bug

--Mediator error display format bug with api.