[PATCH 1 of 3] progress: move from extension to core

[Augie Fackler]

On 5/18/2012 6:01 PM, Matt Mackall wrote:
> Btw, I'm not sure what the use case for progress.assume-tty is, you
> snuck it in here:
>
>   http://www.selenic.com/hg/diff/ca6ba6cac6cd/hgext/progress.py
>
> ...and that will be extra-hard for hgweb to defeat.

That's used both for testing and (I think) by MacHg to get progress 
information.