By 'cd' without any arguments/options, move into project root directory.

[HiroKws]

Hi,

I'll proposal an enhancement.

By cd without specified directory as argument, it means to move back to user's home directory normally.

But almost case, it is a user of web server. Normally, they are www or wwwrun. And this kind user don't have home directory.

So, I think it is better when user input only "cd", then it will move to project root directory.

ML, Hiro