Before this commit, we strictly required the user to make a ~50 pixel
move in order to get these two gestures. We can get a more precise
experience if we allow very small gestures as well. This can be achieved
by making better use of our "_twoTouchTimeout".
Our two touch timeout handling was written to handle this well anyway.
We can distinguish between drag and pinch using the angle.
karma-sinon-chai is not compatible with Chai 5+, and Karma is no longer
being updated.
Load sinon and chai manually instead, until we can have a long term plan
in place.
Add several single and multitouch gestures to simulate various mouse
actions that would otherwise be impossible to perform.
This replaces the old system where you could select which mouse button
a single touch would generate.
Samuel Mannehed
Pierre Ossman