convert: show example splice, author, and branch map entries in help
Also document that
- empty lines are skipped and comment are supported in author map
- whitespace is not allowed in branch map entries since we split on it
when parsing the file
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.