Merge pull request #36 from LithiumNL/master

Little fix
Fix uppercase naming!
Merge pull request #37 from Kenny9999/master

Fix uppercase problem
Merge pull request #38 from LithiumNL/master

Sensor calibration
Fix back XML files with new naming
Merge pull request #39 from Kenny9999/master

Fix back XML files with new naming
Some model, connection state, observer work
Merge pull request #40 from Kenny9999/master

Some model, connection state, observer work
commit forgotten missing files
Merge pull request #41 from Kenny9999/master

commit forgotten missing files
Merge pull request #42 from LithiumNL/master

Added magnetometer calibration panel, added timer stop
Merge pull request #43 from LithiumNL/master

added submenu
Merge pull request #44 from LithiumNL/master

Added menu items to sidemenu
Some little work on menue and mag
Merge pull request #45 from Kenny9999/master

Some little work on menue and mag
Changed images path