- New 'returnXHR' service prop on requests that will return custom jqXHR object from promise instead of data
- Minor changes and bugfixes:
  - Correctly test failed promises in ClientService tests
  - Test parsing of data on failed promise in ClientService
  - Use native DOMParser instead of xmldom library in ClientService
  - Correct typo causing xhr.responseText to not be returned from failed promise in ClientService
- Issues: #23 #24