Fixed a bug where products werent taking into account the last updated time
Added inventory data
Added sub product ids to orders
Updated count to be more efficient
Added attributes and options to line items
Discount updates

- Added discount amount to the item
- Added discount rule name
DRYed up attribute, options and discount code
Added product sub ids to products
Added customer group or orders and carts
Added customer group to customers
Bumped to version 1.1.0
Merge pull request #2 from adamgotterer/master

Version 1.1.0