Rewrite comparison so it's clearer and more readable, as suggested by @mrdoob
Seems like using element.style.left is ~10fps faster than element.style.marginLeft
Merge pull request #67 from mrdoob/dev

Improved example performance
Use window.performance.now if available, otherwise fallback to Date.now polyfill
Merge branch 'master' of git://github.com/tdreyno/tween.js into dev

verts commit d6571b01fc0aaf0832a62e01603d7ee3c0d7c9c8, reversing
changes made to c1c86f650453f878797a2e487da7f21d78017de5.
Bringing @mrdoob's latest example change back into dev (sorry about the branch mess :-()
Use simpler performance.now code lifted from three.js, as per @mrdoob suggestion
First implementation of repeat(), for #71
Add recent changes to README.md, preparing for monthly release
Add tests for TWEEN.Tween.repeat()
Link to new example from README.md file, also update change log
Merge branch 'dev'