Fix saving regular price
Add `jigoshop_enqueue_settings_scripts` action
Add `add`, `get`, `set`, `exists` and `delete` functions to Options class
Add support for disabled elements in options
Add Jigoshop user fields to user profile
Update changelog
Add ajax cart item quantity update
Properly remove item when quantity reaches 0
Fix template for empty cart
Hide "Update cart" button when JS available
Add ability to select date and time of sales
Add current time to sales schedule
Refactor all occurences of old *_option() calls
Small changes to System Info page
Remove leftover var_dump
Add checking WP Memory Limit
Prepare RC 1 release