reindent code
ship_addr and bill_addr to billing and shipping

This way it can be converted to words for reporting
Link to proper code
Add an example
Allow either the sku_loc or sku_vendor
Indentation and alignment
Add an example
Add a bare-bones implementation of price

Pricing Libraries will be ported later
Link docs that weren't picked up by YARD
Set proper gl accounts on fixtures
A few more tests on SalesOrder
Add a few more code examples