epeli/underscore.string — pull request #106 by mark-rushakoff (2012-04-09 06:29:06+00:00)
Title: Handle numeric character references in unescapeHTML

I was using `unescapeHTML` on some text, and I was disappointed to see that [numeric character references](http://en.wikipedia.org/wiki/Numeric_character_reference) -- particularly `'` -- were not being unescaped. This commit unescapes decimal and hexadecimal NCRs in all the legal variations I was able to find (both uppercase and lowercase hexadecimal digits, decimal digits, leading zeros in both cases).