Support Spree v1.0.1+
Refactor properties to match Spree.
Test against Spree Edge 1.1.x and Rails 3.2.x to fix the functional tests.
Fixes for hook deprecation and switch to ransack search.
Update gemspec for official 1.1.0 release.
Set to user Spree 1.2.
Update dependency to spree_core 1.3.1
Make this fully work with Spree 1.3

add updateable fields to attr_accessible whitelist
Merge pull request #2 from rterbush/9a4e808db03bccdfe66afd8cc16889b7a42dabc2

More changes to support 1.3