[IMPROVEMENT] CloseFistGesture tigger flyout openning

a little messy atm, need to fix a min distance to recognise a
CloseFistGesture
[IMPROVEMENT] short distance to validate a fist recognition

maybe too short (50)
[IMPROVEMENT] gestures options methods (get all gestures/actions)

add mouse mouvement with leap in ContactListView
[IMPROMENT] leap click on contact to start a conversation
Merge branch 'server' into leap
[IMPROVEMENT] 2D Gesture Recognition in Leap FlyOut
[IMPROVEMENT] add Register 2D gesture in LeapFlyOut
[IMPROVEMENT] add leap control in leap flyout

buggy atm, we need a steadier  leap control
Merge branch 'master' into leap
[IMPROVEMENT] 2D Recognized Gestures option template

Simplified RecognizedGestureManager
itemSource items not showing correctly
[BUGFIX] Leap options binding
[IMPROVEMENT] Media Element added in VideoTabItemView
[IMPROVEMENT] LeapOptionView add DataTemplateSelector

display either gestureName or predifined string if null
[IMPROVEMENT] Add gesture to Action in LeapOption
[IMPROVEMENT] add flyout actions and fix gesture register
[IMPROVEMENT] gesture register and actions

Remove "gesture_" from registered gestures
Add OpenDrawTab and OpenMapTab actions
[IMPROVEMENT] Add button modify gesture in leapOptions
[IMPROVEMENT] gesture preview in options
Merge branch 'master' into leap