* Topic and post creation wrapped in transaction
* All topic/post/poll related forms can be overrided when custom view inherites pybbm view
* Demo data for example projects
* Using active markup engine when quoting posts via javascript
* Functionality to support disabling default pybbm subscriptions and notifications and
new settings: `PYBB_DISABLE_SUBSCRIPTIONS` and `PYBB_DISABLE_NOTIFICATIONS`
* Fixed sorl.thumbnail/easy_thumbnail compatibility in standard `pybb/avatar.html` template
* Improved example projects
* Removed applying `urlize` filter over html produced by markdown parser
(it doesn't play nicely with html markup as noted in django's docs)
* django 1.8 compatibility
* common django layout for test project
* use mysqlclient package for testing installation with mysql database backend on python 3
* optional enabling "nice urls" for entire forum,
that looks like '<forum prefix>/c/<category slug>/<forum slug>/<topic slug>/'