Add Integer#from_mongo. Closes #533
Clear @object_id_keys memoization cache when a new key is defined. Closes #534.
Bump to 0.13.0-beta1
Bump plucky requirement to 0.6.5
Lock timecop to 0.6.1 for Ruby 1.8.7 support
Revert 1.9 hash syntax for hashrockets.
Permit suppression of accessor methods via the :accessors option to #key. Closes #535.
Cast data with loaded from an embedded proxy, as embedded proxies may receive their values from uncast sources. Closes #536
Bump version for 0.13.0.beta2
Add rubysl for rubinius support