Initial release

Initial release

Supports:

• spaces and slashes between multiple directories
• - to go back to previous directory (passes directly through to builtin shell cd)
• .. to go up one directory level
• absolute paths (starting with /)

Features

Init: add eval "$(jcd init)" to your .zshrc or .bashrc (others may be supported but are not tested) to initialize the command
Help: jcd help prints a short help message