Simple write method
Basics functions
Comment write method
Servo.js as a real class object
Head implementation (needed for servo test)
[Refactor] Hexy -> Connection
Refactor master !

- Tab space 4 to 2
- JSdoc Comments
- General structure
add /n to fix serial write
With return it's better
Fix convertion degree to ms
Fix auto-kill for saving servo life
Merge branch 'feature/servo' into develop