Merge pull request #63 from jacobmarble/master

OS X package support part A
Added tests for getPrinterIDByDetails
Merge branch 'master' of github.com:simoncadman/CUPS-Cloud-Print
Removed more redundant code from printermanager.py and tests related to it
MockRequestor now extends CloudPrintRequestor, removed unneccessary functions
Removed more uneccessary functions from MockRequestor
Added test for running getPrinters from printerManager with specific account