Accept aliasses of hub

[lode]

I installed hub and aliased it with git and this seems to play fine with git-sh. Except that certain new commands don't work. For example:

• fork
• pull-request
• create
• browse
• compare

Others do work, like help hub. Can the new hub commands also be passed on?

[lode]

Using the tip in #20 (comment) I've added these lines to ~/.gitshrc:

alias fork='hub fork'
alias pull-request='hub pull-request'
alias create='hub create'
alias browse='hub browse'
alias compare='hub compare'

That works just fine. Except that auto completion doesn't join in.