- Added: PyPy2/3 is now officially supported
- Added: Introduced `enabled_modules` on demand include in Project resource
- Fixed: Issue 78 (Redmine <2.5.2 returns only single tracker instead of a list of all available trackers when requested from a CustomField resource which caused an Exception in Python Redmine, see [this](http://www.redmine.org/issues/16739) for details)
- Fixed: Issue 80 (If a project is read-only or doesn't have CRM plugin enabled, an attempt to add/remove Contact resource to/from it will lead to improper error message)
- Fixed: Issue 81 (Contact's resource `tag_list` attribute was always splitted into single chars) (thanks to [Alexander Loechel](https://github.com/loechel))