Added GestureRotateControl.java class to source code.
Started with the Rotate Gesture.
Still buggie.
Gesture based rotation finished, though not perfect.
Merge branch 'master' into GesturesRotating
GestureGrabControl toegevoegd
Een beginnetje.
Een iets groter beginnetje.
Grabbing gesture implementation
Merge remote-tracking branch 'origin/master' into GesturesGrab
Improved Swipe Rotation. Now the rotation speed depends on the swipe speed and the rotation continues after a swipe (including a decay).
Eerste versie van de grab, nog buggy maar hij werkt! :D
Made the rotation of the grid much more robust.
Added:
- The (moving) average and standard deviation of the Z coordinate from the user's swipes intended to rotate the grid
- The (moving) average and standard deviation of the duration from the user's swipes intended to rotate the grid
- A value based on the average and stdev of the swipe duration to filter out false-positive swipes that occur when the user's hand is "back-swiping"
- Used the above variables to determine whether the user intended the grid to rotate or not
- Three sensitivity variables that determine the sensitivity of what swipes need to be accepted as those intended to turn the grid. The lower the value the lower the chance a swipe is accepted,
the higher the value the more likely a swipe is accepted as a swipe intended to rotate the grid. But this is still based on the user's behaviour.

Still not perfect, but alot better.
Also; the perfect detectable swipe is performed with two fingers and almost perpendicular (haaks) to the leap.
Fine tuned variables of the rotation settings
Fixed a few bugs
Added the GridCamera to the GestureRotateControl
- Added camera control
- Added all variable stuff that makes it more robust
- Improved parameter settings (atleast for me and Youetta)
added setup for additional viewports
Merge remote-tracking branch 'origin/feature-modelscreen' into GesturesGrab

Conflicts:
	src/leaptest/Main.java
Merge branch 'master' into GesturesRotating

Conflicts:
	src/leaptest/Main.java
Improved the Swipe robustness and killed some bugs
Improved settings
Errors gefixt en merge conflicts gefixt.