update gemspec and Gemfile to spree 2.2 and rails 4.0.3
update stylesheet and javascript injection path in installer
change the Back to order link on find page to send a get request
remvoving overwritten invoice views and move them to the spree-html-invoice-extension
Merge branch 'upgrade_2.2' of github.com:vinsol/spree-point-of-sale into upgrade_2.1_fixes
Merge branch 'upgrade_2.1_fixes' of github.com:vinsol/spree-point-of-sale into upgrade_2.1_fixes
change spree version to 1.1.1 and spree_core version to 2.1.0