Enable transform: perspective
Changed so that perspective is always interpolated as a matrix
Merge pull request #159 from rjwright/TransformPerspective

Enable transform: perspective
Merge pull request #161 from dstockwell/font-weight

Add font-weight handler
Replace timeline.js with tick.js in minifill.
Removes public API functionality.
 - getAnimationPlayers
 - document.timeline
 - also needed to remove Element.getAnimationPlayers
Added timeline.js to maxifill.
Tests are mostly working.
Rest of tests now pass.
Merge pull request #163 from shans/timelineToMaxifill

Move timeline to maxifill
Add grunt task for wrapping files and maintaining source mappings.
Add extra target lists to targetConfig.
Add native implementation detection to target-loader.js.
Working build definitions for minimized minifill and maxifill.
Check Element.animate exists as part of minifill loading decision.
Added Element.animate check to target-loader
Merge pull request #160 from shans/guarding

Updated Gruntfile to build minifill and maxifill targets that will fall back on native implementation when available.
forced targets for testing against guaranteed polyfill.
Merge pull request #164 from shans/forcedFill

forced targets for testing against guaranteed polyfill.
Support animation of transform-origin, perspective-origin and background-position.
Remove unneeded code.