Make 'query --verbose' print the branch topic

Previously, the --verbose option made the change hash be dumped, but
this is too much noise for a user-friendly option. It could be done
for a --debug option in the future.

Signed-off-by: Gustavo L. de M. Chaves <gnustavo@cpan.org>
Make 'change query' work outside of a git repo

If we aren't in a git repo we simply don't restrict the query to the
current project's reviews.

Signed-off-by: Gustavo L. de M. Chaves <gnustavo@cpan.org>