v3.0.0 release

tagging v2.1.1

tagging v2.1.0

tagging v2.0.6

Bump version to v2.0.5

Tag v2.0.4

Bump to v2.0.3

Bump to v2.0.2

Bump to v2.0.1

Update dev dependencies and set hard Rails >= 3.1 in gemspec

Sorry, everyone on < Rails 3.1 :(

Rails::Engine is broken on 3.0 and can't be supported.