add a drop target for trackend
add track sample area
expose clientXY pageXY screenXY of track gestures, use pageXY for position deltas
rev PointerEvents
use ES6 Map for PointerMap
update PointerEvents
update PointerEvents, modernize sidetable
doubled iffe is bad
only start tracking on left mouse button
Update PointerEvents
update PointerEvents, use buttons in track
update buildbot submodule in PointerEvents
update PointerEvents
update PointerEvents
update PointerEvents
use contains instead of compareDocumentPosition for LCA
fix tracking on IE 10 with touch
update PointerEvents
Merge pull request #3 from toolkitchen/master

5/9 master -> stable