Prevent undo jobs before leading tasks

Bump version

Consistent view name

Add changelog

Bump version

Bump version

Bump version

2014-12-02

* Development of viewform and karenina projects no longer opensourced
* Refactor fsm from task model to activation classes
* Generic admin actions for changing tasks state
* Support for view tasks unassign/reassign
* Allow tasks undo and cancel
* Store error information for tasks

2014-11-06

* Repository moved to https://github.com/viewflow/
* Form handling moved to separate library - https://github.com/viewflow/viewform
* viewflow.site removed. Pro user still could install it with `pip install django-viewflow-site`
* Fancy ready to use templates available within `Karenina cookiecuter project template <https://github.com/viewflow/karenina>`_
* Tasks and Process list views became part of the viewflow library
* Flow urls simplified. Application instance namespaces not used anymore
* Fixed migrations for stable django 1.7
* HTTPS pypi server available for pro users.

2014-10-01

----------

* First beta version. First public available release with commercial support and licencing.
* All API that could be imported as `from viewflow.some_package import cls_or_function` considered stable and
  not going to be changed much till 1.0 release (except `viewflow.site` that's still under develpment)
* Django 1.6 support available in public version of viewflow library
* Added task details views
* Custom tag creation simplified
* Split flow base classes to be independed from Django permission system
* Object level permission support for tasks.
* Improved {% flowurl %} tag
* {% flow_perms %} tag for task permission list in template
* Base abstract classes for models
* New video: Viewflow Internals - https://vimeo.com/107698021