Upgrade to RSpec 3.0.0

[HoneyryderChuck]

CanCan Matchers do not conform with the new RSpec (currently 3.0.0.rc1, approaching official release).

[adelevie]

👍 here

[xhoy]

Thanks for your submission! The ryanb/cancan repository has been inactive since Sep 06, 2013.
Since only Ryan himself has commit permissions, the CanCan project is on a standstill.

CanCan has many open issues, including missing support for Rails 4. To keep CanCan alive, an active fork exists at cancancommunity/cancancan. The new gem is cancancan. More info is available at #994.

If your pull request or issue is still applicable, it would be really appreciated if you resubmit it to CanCanCan.

We hope to see you on the other side!