robbyrussell/oh-my-zsh — pull request #2576 by jeffwilliams (2014-03-03 15:25:59+00:00)
Title: Added dirhistory plugin.

This plugin navigates directory history using ALT-LEFT and ALT-RIGHT. For example, if the shell was started, and the following commands were entered:

cd ~
cd /usr
cd share
cd doc

Then entering ALT-LEFT at the prompt would change directory from /usr/share/doc to /usr/share, then if pressed again to /usr/, then ~.