CanCanCan v1.8.0 Released

[brite]

Release 1.8.0 today. Adds Sequel (the ORM) support, can? supports multiple permission checks, allow Proc/eval methods for strong_params methods, and many internal improvements.

Changelog can be found here: https://github.com/CanCanCommunity/cancancan/blob/f403950d373999ff9d31e4584718e952ae1daddf/CHANGELOG.rdoc

Thanks to all committers for their support!