re-organize constance configs, we have too much of them it was unreadable.
Fix http://dev.1flow.net/development/1flow-dev/group/44744/ ; default feed manager must be polymorphic-aware.
Switch JSON field implementation, because of https://github.com/bradjasper/django-jsonfield/issues/101
cleanups.
Switch JSON field in model.
pre-format the message.
Port the relational DB Folder model a little more.
pep8.
JSON field migration.