Added some unit tests for AWSQueryConnection
Reworked test_connect unit test structure + new tests
Fixed up formating in AWSQueryConnection unit tests
Removed unused import in AWSQueryConnection unit tests
Fixed up API version check in AWSQueryConnection tests
Import json from compat module
Merge branch 'pasc-awsqueryconnection_unit_tests' into develop

* pasc-awsqueryconnection_unit_tests:
  Import json from compat module
  Fixed up API version check in AWSQueryConnection tests
  Removed unused import in AWSQueryConnection unit tests
  Fixed up formating in AWSQueryConnection unit tests
  Reworked test_connect unit test structure + new tests
  Added some unit tests for AWSQueryConnection