Replaced deprecated jQuery 1.9.x live() function with on().
Merge pull request #43 from raid5/jquery-live-function-replacement

Replaced deprecated jQuery 1.9.x live() function with on().
Creating a payment object for a line_item if it doesn't exist in the line item preprocess method.
bump rails_admin to 0.4.5
Method logic updates.
Merge remote-tracking branch 'upstream/master'
disabling purchase button when checkout form is valid