[MERGE] Better progress reporting in commit

[Martin Pool]

Martin Pool has voted +1.
Status is now: Approved
Comment:
Sounds good.

I have minor mixed feelings about showing "stage 1/3" in progress bars - 
it is good to give people an idea of overall progress, but just doesn't 
feel quite right when we're showing eg "merge 3/4".  But let's merge 
this and see how we go.


For details, see: 
http://bundlebuggy.aaronbentley.com/request/%3C4678A656.4080408%40internode.on.net%3E