Move two steps on each move up/down. (Attempt to make it more playable after
treefa50fde99aa8bb7b57681871b12c9453d8ffb20e
drwxr-xr-x - CVSROOT
drwxr-xr-x - apps
drwxr-xr-x - docs
drwxr-xr-x - firmware
drwxr-xr-x - flash
drwxr-xr-x - fonts
drwxr-xr-x - gdb
drwxr-xr-x - tools
drwxr-xr-x - uisimulator
drwxr-xr-x - www