Elements under pointer

[davidaurelio]

• Contains #194 and #195
  • Added a basic implementation of charCode to return for keypress events
  • Cleans up event handling in the svg renderer.
  • adds “deltaX/Y” and “diffX/Y” to regular “pointermove” events as well (not only drags) when triggered by mouse events.
  • adds “deltaX/Y” to “pointermove” and “drag” events when triggered by touches
  • does not send unnecessary drag events to the runner.
  • Stops memory leaking from touch events.
• breaks out dom event recognition and translation to bonsai events into own module
• adds experimental event feature: get all elements under the pointer for pointer events

[wolframkriesing]

i can see that the test cases i added pass too, so for that part i can say +1, the rest i dont feel knowledgable enough.