Minor update

2.2.0 - April 6 2016

• Deprecated the use of hyphens in property names.

  For example, this is deprecated:

  element.animate([{'font-size': '0px'}, {'font-size': '10px'}]);
  

  and this should be used instead:

  element.animate([{fontSize: '0px'}, {fontSize: '10px'}]);
  

• Added arbitrary easing capitalisation.

• Added "id" effect option. (http://w3c.github.io/web-animations/#dom-keyframeanimationoptions-id)

• Added "oncancel" event handler.

• Added value list keyframe syntax.

  As as alternative to:

  element.animate([{color: 'red'}, {color: 'green'}, {color: 'blue'}]);
  

  you can now use:

  element.animate({color: ['red', 'green', 'blue']});
  

• Fixed easing TypeError in FireFox Nightly when using groups.

• Fixed delayed animation updates on Safari and Firefox

• Fixed infinite recursion when setting onfinish to null.