maintains a jump-list of the directories you actually use
old directories eventually fall off the list
inspired by Joel Schaerer's http://wiki.github.com/joelthelion/autojump
and something similar i had - but i could never get the dir list right.

INSTALL:
  source into .zshrc
  cd around for a while

USE:
  j [--h[elp]] [--l] [--r] [--s] [regex1 ... regexn]
                      with no args, returns full list (same as j --l)
    regex1 ... regexn jump to the the weighted directory matching all masks
    --l               show the list instead of jumping
    --r               order by recently used instead of most used.
    --s               shortest matching path

TIPS:
  Some handy aliases:
    alias jl='j --l'
    alias jr='j --r'
    alias js='j --s'

CREDITS:
  Joel Schaerer aka joelthelion for autojump
 Rupa (http://github.com/rupa) for bash version (http://github.com/rupa/j)
 Burke Libbey for porting to zsh