[MERGE] New log formats controlling the display of merge revisions

[Ian Clatworthy]

Ian Clatworthy has voted resubmit.
Status is now: Resubmit
Comment:
I think this ought to be split in two so that the introduction of new 
formats is a separate step to switching the default behaviour. That then 
gives those running bzr.dev time to try them before we decide on log vs 
short vs whatever as the out-of-the-box output.

For details, see: 
http://bundlebuggy.aaronbentley.com/project/bzr/request/%3C496E7631.9030008%40internode.on.net%3E
Project: Bazaar