Bug: cd doesn't do anything when used with DollarSkip

[Crilum]

I just ran $ cd from a non home path, and it doesn't do anything:

pi@AwePi:~/github/lollypop $ $ cd
pi@AwePi:~/github/lollypop $ echo $?
0
pi@AwePi:~/github/lollypop $

[Itai-Nelken]

That is because cd is a built-in shell command.

[Itai-Nelken]

Unfortunately there is no way to fully fix that.
In #47 I made DollarSkip error on built-in shell commands that don't work through DollarSkip like cd.