CanCanCan 2.0 is out

After few months CanCanCan has finally a new major version: 2.0.The CanCanCommunity searched for long time for new maintainers and is now active again thanks to Renuo.There are many important changes in the new version but very few new features. We thought it was time to bring the project back on track and drop support for a lot of unnecessary features.Drop support for Mongoid and SequelYes, these two ORMs are not supported anymore. They’ll be extracted in two different gems cancancan-mongoid and cancancan-sequel and we’ll look for maintainers for them. People using these libraries need to stick to gem cancancan, '< 2.0'.