Update get_best_sellers javascript
Update Paypal config form to show sandbox option.
Checking for upload error number rather than text match

Check the $_FILES array for an error number rather than attempting to
match the language based error.
Merge pull request #118 from onefriendaday/patch-1

Update get_best_sellers javascript
Removed legacy tablerate shipping method
Replace ajax based category picker with a category tree

Due to many complaints about the category search in the product form
page, it's been replaced with a much simpler category tree.
updated
Made step_1 of checkout utilize translated field names
update
Merge branch '2.0-Development' of https://github.com/gocart/GoCart into 2.0-Development
Change all postcode verbiage to zip

For a long time GoCart has not settled on "postcode" or "zip"
converting everything to zip. This should also make translating easier.
Make str_replace DRY and more flexible (thanks  onefriendaday)
Attempt to Fix issue #109 "Installing table_rate error"

Though I was unable to experience the issue reported the changes I've
made will likely fix the problem. The changes do not stop the system
from functioning properly for me.
Humanize the Shipping and Payment Module Names

Changes for example table_rate to Table Rate in the view.