Added some optinos to openreviews

* --debug, to set the logging level to debug
* --server, to specify a custom server
* --projects-dir, to specify a custom directory to fetch the projects
  from
* Adapted to the review statuses for gerrit 2.6.1

Change-Id: Id06f0cde90c675210fb0e19ed8bda98e8e76beca
Signed-off-by: David Caro <dcaroest@redhat.com>