code: function removeProperty(key, successCallback, errorCallback) {
          return neon.util.ajaxUtils.doDelete(
              neon.serviceUrl('propertyservice', key), {
                  success: successCallback,
                  error: errorCallback,
                  responseType: 'json'
              }
          );
      }
docs: Remove a property
  @method removeProperty
  @param {String} the property key to remove
  @param {Function} successCallback The callback
  @param {Function} errorCallback The optional callback when an error occurs. This is a 3 parameter function that contains the xhr, a short error status and the full error message.
  @return {neon.util.AjaxRequest} The xhr request object