rebase: add option to not commit after a collapsing
This option is useful when other extensions (e.g., pbranch) want to
use rebase --collapse and append other things before committing.
This is not intended to be used from command line.
Basic install:
$ make # see install targets
$ make install # do a system-wide install
$ hg debuginstall # sanity-check setup
$ hg # see help
See http://mercurial.selenic.com/ for detailed installation
instructions, platform-specific notes, and Mercurial user information.