[math4] Activity: adding/subtracting whole numbers

[John Posner]

Shawn Willden wrote:
> Wesley's origin was aliased to
>
> 	gitorious at git.sugarlabs.org:yourproject/yourbranch.git
>
> So I'm guessing you want to substitute 'gitorious' for 'git'.
>   

Thanks for the suggestion, Shawn, but no dice:

   $ git push gitorious at git.sugarlabs.org:BlockHead/mainline.git
   ssh_exchange_identification: Connection closed by remote host
   fatal: The remote end hung up unexpectedly

I've tried recreating my SSH key. The new key worked on the GitHub site, 
but not on SugarLabs.

-John