fixes #532 — no getElementsByClassName in IE8#604

subtleGradient wants to merge 1 commit intofacebook:masterfacebook/react:masterfrom

subtleGradient:subtlegradient/removes-getElementsByClassName-from-unit-tests-for-ie8-compatibilitysubtleGradient/react:subtlegradient/removes-getElementsByClassName-from-unit-tests-for-ie8-compatibilityCopy head branch name to clipboard