V1.2 - Added watch buzzer and tone warnings

Version 1.2 adds feedback to the user that will make the watch buzz and/or beep in the event of an ALARM condition being detected or if the communications to the phone fails (for example if the user moves out of range of the bluetooth connection). This was a user request, but it is possible that it may be too annoying and we may need a way of switching it off - please let me know if you want it modifying! (Release v1.1 should work on most devices and does not have this feature).
It also restores compatibility with older devices such as the VivoactiveHR (Issue #15).

Full Changelog: v1.1...v1.2