* Add completion handler to FIRExperimentController updateExperimentsWithServiceOrigin:
* Update tests to verify completion handler is called
* Add error param to the completion handler in updateExperimentsWithServiceOrigin:
* Rename error domain for ABT SDK errors, rename method to set CUPs via the user property controller-- it doesn't do anything in the background
* Add back support for updateExperiments method without completion
* Add description for Failed to get conditional user properties error
* Fix string argument warning
* Deprecate updateExperimentsWithServiceOrigin method that doesn't have a completion handler
* Ignore deprecated warning in tests
* Run scripts/styles.sh
christibbs