seperated SubContainer added direction option
added RAF polyfill
Merge branch 'release/v0.0.2'

* release/v0.0.2:
  added RAF polyfill
  seperated SubContainer added direction option
Merge branch 'master' of https://github.com/naman34/react-infinity

* 'master' of https://github.com/naman34/react-infinity:
  Typo