added sensortag class and test program
changed folder structure
Merge branch 'master' into development
Deleted wrong test folder.
Merge branch 'development' of git://github.com/CounterNoob/libsensortag into CounterNoob-development
Fixed import
Merge branch 'development' of git://github.com/CounterNoob/libsensortag into development
Merge branch 'CounterNoob-development' into development
Merge local libsensortag into development