Switch review.o.o to testmode

Also, cause testmode to disable manage-projects on gerrit servers.

This will cause puppet to stop writing the replication config (but
leave it in place on the production server) and also stop running
manage-projects.  This is so that we can spin up a new gerrit
server without it immediately creating projects or replicating.

Also, remove the gerrit::mysql module so we can replace it with
a trove database.  Again, the existing mysql databases should be
untouched.

Change-Id: I157993297ae8168064ef5b368d42dc93989aef21

modules/openstack_project/manifests/gerrit.pp

@@ -375,6 +375,7 @@ class openstack_project::gerrit (
       require => Class['::gerrit']
     }
 
+    if ($testmode == false) {
       exec { 'manage_projects':
         command     => '/usr/local/bin/manage-projects',
         timeout     => 900, # 15 minutes
@@ -391,6 +392,7 @@ class openstack_project::gerrit (
           ],
       }
     }
+  }
   file { '/home/gerrit2/review_site/bin/set_agreements.sh':
     ensure  => absent,
   }

modules/openstack_project/manifests/review.pp

@@ -76,15 +76,8 @@ class openstack_project::review (
   $swift_password = ''
 ) {
 
-  # Setup MySQL
-  class { 'gerrit::mysql':
-    mysql_root_password  => $mysql_root_password,
-    database_name        => 'reviewdb',
-    database_user        => 'gerrit2',
-    database_password    => $mysql_password,
-  }
-
   class { 'openstack_project::gerrit':
+    testmode                            => true,
     ssl_cert_file                       =>
       '/etc/ssl/certs/review.openstack.org.pem',
     ssl_key_file                        =>