Add flash messages on any photo review action
Add flash messages on any photo review action

These are so that when you get re-directed back to the photo review
queue, there's some indication of what you've just done (i.e. either
approved, rejected, ignored or postponed thinking about a photo)

datamade/yournextmp-popit,YoQuieroSaber/yournextrepresentative,mysociety/yournextrepresentative,datamade/yournextmp-popit,datamade/yournextmp-popit,openstate/yournextrepresentative,mysociety/yournextmp-popit,YoQuieroSaber/yournextrepresentative,mysociety/yournextmp-popit,mysociety/yournextmp-popit,DemocracyClub/yournextrepresentative,neavouli/yournextrepresentative,openstate/yournextrepresentative,mysociety/yournextrepresentative,YoQuieroSaber/yournextrepresentative,YoQuieroSaber/yournextrepresentative,neavouli/yournextrepresentative,mysociety/yournextrepresentative,datamade/yournextmp-popit,openstate/yournextrepresentative,datamade/yournextmp-popit,YoQuieroSaber/yournextrepresentative,neavouli/yournextrepresentative,DemocracyClub/yournextrepresentative,mysociety/yournextmp-popit,mysociety/yournextrepresentative,neavouli/yournextrepresentative,mysociety/yournextrepresentative,openstate/yournextrepresentative,DemocracyClub/yournextrepresentative,openstate/yournextrepresentative,neavouli/yournextrepresentative,mysociety/yournextmp-popit