compatible with AR threadsafe branch
adding more threading tests
Merge pull request #117 from Shopify/add_carrier_service_resource

Adding support for CarrierService resource
create a Gemfile for threadsafe AR
conditionally include threadsafe hack
only include threadsafe tests when using threadsafe
update .travis.yml
updating README
use a Shopify version of ActiveResource, not peterjm's version
Merge pull request #95 from Shopify/threadsafe_headers

Threadsafe headers
fix badly formatted README
reference branch name, not ref SHA
Merge pull request #118 from Shopify/fix_readme_typo

Fixing README formatting
Bump version to 3.2.1 and update changelog
Lock ActiveResource version ~> 4.x
Gemfile specific 4.x activeresource
Fixing conflict