Get Closure compiler.jar from GitHub. Fixes #202.
Remove reactive example, since Haste.Reactive is no longer around.
Calculate offset against currentTarget instead of target
Fix typos in int64 bit-shift functions
Merge pull request #206 from simonlindholm/patch-1

Fix typos in int64 bit-shift functions
Merge pull request #205 from takeoutweight/fixoffset

Calculate offset against currentTarget instead of target