* wp.svgPainter and now moved to wp-admin.
* Restore !important background-image handling.
* Delay executing the IE9-specific base64 code if we don't need it.
* Make painted icons lose their color after hover at the same speed as dashicons (100ms).
props azaozz.
fixes#26333.
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git-svn-id: http://core.svn.wordpress.org/trunk@26583 1a063a9b-81f0-0310-95a4-ce76da25c4cd
