IE8/IE9 compatibility fixes#21

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keredson wants to merge 2 commits intomintchaos:masterfrom

keredson:master

Commits on Feb 16, 2014

classList.add, classList.remove and addEventListener don't work in IE8/IE9. added workarounds.
Derek Anderson
committed
read online that rgba isn't respected in older IE versions, and this filter is a good sub.
Derek Anderson
committed