fixed "cd" command problem

[ghost]

There was a problem with the "cd" command, so I was able to get it working

[alexcouper]

@Tilesentik thanks for the input.

What was broken with cd?

Also, the pull request diff looks v odd, I think there are a few things going on:

1. __init__.py uses spaces, not tabs so it looks like the whole file has been changed and therefore tricky to isolate your change(s)
2. You've git added more than just the __init__.py file so there are 4 files queued to be merged.

Could you fix and repush?