gregbell/active_admin — pull request #1904 by nbartlomiej (2013-02-06 12:38:41+00:00)
Title: Using sass ie-hex-str for colors in IE filters

This fixes blue buttons (#1252) issue in IE, tested in IE9.

I've used SASS' [ie_hex_str](http://sass-lang.com/docs/yardoc/Sass/Script/Functions.html#ie_hex_str-instance_method) to expand color values.