leap: first implementation of LeapFinger, inspired from LeapMotion by thomas
Context and Sandbox widget: preliminary tests to fully seperate global instances of Builder, Cache, etc. Right now, only Builder is tested.
sandbox: enhance sandbox separation, and add ExceptionManager into the sandbox management too.
sandbox: add a little comment for explaining the example
wip sandbox with clock
sandbox: ensure the container is created, and fix clock
Reimplement StencilView in ScrollView nativly.
Add option to show scroll bars permenently.
Add option to scroll proportional and in same direction as drag.
Remove unused old function.
Add option to enable scrolling from on top of the scroll bars only.
Add example when scrollview is run.
Finish implementing propotionate scrolling.
Imporve example.
Always allow mouse wheel scrolling.
Merge branch 'refs/heads/input-leapfinger'
fixes for latest leap sdk version

specifically version 1.08
fixed error when closing application

By adding a listener for exit and doing absolutely nothing in it. But it works
pos3d profile and z position
normalized z for leap