change event binding to slider ownerDocument

[zvcolpdy]

I noticed a problem that events binding to document. It has problem in frames that has they own document. It is better to use el.ownerDocument to add all slider event listeners.

[coveralls]

Coverage remained the same at 61.739% when pulling 88e1375 on polkpolio1:events-in-frame into 0a07ada on react-component:master.

[coveralls]

Coverage remained the same at 61.739% when pulling 6f1867b on polkpolio1:events-in-frame into 0a07ada on react-component:master.

[benjycui]

Agree, but could you just show the problem with online demo? Thanks.

Please provide a re-producible demo: http://codepen.io/benjycui/pen/aJooRE?editors=0011

[zvcolpdy]

Here it is:
https://codepen.io/anon/pen/gGQyvP?editors=1011

[benjycui]

8.3.2