[MERGE] Tree-specific rules

[Alexander Belchenko]

Ian Clatworthy пишет:
> lifeless, fullermd and I discussed tree-specific rules on
> IRC today and agreed there was value in supporting them Real
> Soon Now. Ultimately, we'd like to be able to define rules
> that apply at a 'project' and/or branch level, perhaps by
> embedding rules in locations.conf and branch.conf.

I think placing rules into locations.conf or branch.conf
is very bad idea. Please, keep them in separate file until
versioned properties will be implemented (?),
so people at least can move this file around easily, without
manual editing. branch.conf usually contains many private info.