Exposes previous X and previous Y in callback#43

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romellem wants to merge 4 commits intochrisbateman:masterfrom

romellem:master

Commits on Sep 28, 2018

Fix memory leaks
Firas Dib
committed
Properly handle events
Firas Dib
committed

Commits on Oct 1, 2018

Create build
Firas Dib
committed

Commits on Oct 3, 2018

Tracks previous x/y values
romellem
authored