Make use of Gerrit CLI to retrieve group UUID

Added the following features:
  * ability to retrieve groups by using gerrit CLI added.
    Old mechanism of retrieving new group UUIDs by using SQL-query
    to database is saved for backwards compatibility.

  * ability to run Jeepyb on the same host where Gerrit installed
    or on a remote host. This mode can be controlled by using
    'jeepyb-run-local' option in the config. Defaults to 'True'.

Change-Id: Ic2aef553a0bd5dc67dc482e6b3640ec11900c5ca
Depends-On: I851ab29999c0d059c9cb71bd38a821c035ae98f7
1 file changed