Merge branch 'master' of https://github.com/GreenRobots/JPHacks
Merge branch 'master' of https://github.com/GreenRobots/JPHacks
Merge branch 'master' of https://github.com/GreenRobots/JPHacks
add SensorMonitorActivity, SensorMonitorCallback
walk detect and heart rate monitor
add log
Merge pull request #11 from TETRA2000/master

add SensorMonitorActivity, SensorMonitorCallback