support for rails 4.1
bump to 1.0.0 - we're getting ready for this
change Shoppe::ProductAttribute.public to Shoppe::ProductAttribute.publicly_accessible
update version in Gemfile.lock and change the location to upload the CHANGELOG
update README
that was careless
bump to 1.0.1
README update
bump version
add `items_sub_total` method
fix gem installation command in README

Name and version need to be separated by a comma
upgrade nifty dependencies
Merge pull request #102 from mxlje/readme-fix

fix gem installation command in README