confirm mutationObserver license as MIT
add driftDeviance option to tap/longpress events, fix issue where fingers were not constrained
add min/max finger constraints to swipe gesture
return x/y coords for dbltap/click (returns the centroid points)
clean up logic in event.proxy
cleanup logic in event.js

* fix issue where command was run twice when using native overwrites (never really used this one myself till now, so apologies for the mistake).
* more detailed error reporting.
* fix issue that occurred when element was added with an id, some events were added to the element, the element was removed, then added back with the same events.
build