[MERGE] 'bzr annotate' shows dotted revnos and --show-ids

[Aaron Bentley]

Aaron Bentley has voted +0.
Status is now: Semi-approved
Comment:
I like the speedup, but I'm not as fond of the way you achive it.  Couldn't we do something more like logformatters?  E.g. pass a callable that emits the string to print?  This looks a bit brittle.

For details, see: http://bundlebuggy.aaronbentley.com/request/%3C4580BAC6.7050203%40arbash-meinel.com%3E