add in fixture for sales receipt, start setting up the sales receipt model
add in initial support for SalesReceipt
Merge pull request #43 from bodagetta/master

Added Service Windows->Employee
Merge pull request #44 from bodagetta/master

Added Service->Windows->TimeActivity, Service->Windows->Job and associated Test
Use qualified Id objects for Intuit IdType fields
add in support for QBO SalesReceipt model
tweaks to SalesReceipt based on live API usage
Merge pull request #47 from nickhammond/sales_receipt

Add support for SalesReceipt to QBO