added windows->employee
Added model reference to employee service
fixed some errors
added shipping address method
Merge pull request #43 from bodagetta/master

Added Service Windows->Employee
Added Service->Windows->TimeActivity
Added Service->Windows->TimeActivity and tests
Added Service->Windows->Job and associated Tests
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
Merge pull request #47 from nickhammond/sales_receipt

Add support for SalesReceipt to QBO
Refactored Filter and separated the handling of Date and DateTime. Also refactored how operational XML is generated and removed hard-coded XML scattered in classes in favor of a centralized mechanism for generating generic XML.
Merge branch 'logging' of git://github.com/nickhammond/quickeebooks into nickhammond-logging

Conflicts:
	lib/quickeebooks/windows/service/service_base.rb
Merge branch 'master' of git://github.com/ruckus/quickeebooks