Added ability to report metric speeds and distance

Signed-off-by: Nicholas Jackson <nic@thatlondon.com>
Merge branch 'master' of https://github.com/nicholasjackson/PebbleBike-AndroidApp

Signed-off-by: Nicholas Jackson <nic@thatlondon.com>

Conflicts:
	src/com/android/njackson/GPSService.java