Include StockLocation id in cache key
Change code from attr_accessible to strong_parameters in line with Spree 2.1.0 Rails 4 dependency
Update gemspec so we're using the latest ActiveShipping from their master branch
Update spec so it properly passes a package to the calculator, use FactoryGirl instead of mock_model to ensure code has the required object web
Remove branch restrictions and notification from .travis.yml.  Add Ruby 2.0
Merge pull request #116 from petergoldstein/feature/fix_specs

Fix specs
Merge pull request #113 from 3drobotics/master

Include StockLocation id in cache key