Maintenance release

Whats new in version 1.2.1
- Text & copy updates

Whats new in version 1.2.0
- Added "Test Speaker" button to pre tests so you can check you have your audio right before beginning the test.
- Renamed the reset button to be more clearer.
- Added Airplay button so you can easily select it if you're playing audio through an airplay speaker.

Whats new in version 1.1.0
- Improved interface when running a test (bigger fonts!)
- Added support to export results to CSV

Bug Fixes
- Fixed cloud syncing
- Fixed timing of on screen levels and shuttles to align with audio