sass/libsass — pull request #647 by xzyfer (2014-11-14 00:00:39+00:00)
Title: Add support for nth with maps

This PR add support for `nth` with maps.

> This can return the nth pair in a map as well. - http://sass-lang.com/documentation/Sass/Script/Functions.html#nth-instance_method

Fixes https://github.com/sass/libsass/issues/643. Specs added https://github.com/sass/sass-spec/pull/134.