Add .gitreview

git-review [1] makes it much easier to submit changes.  Add a default
configuration file.

[1] https://docs.openstack.org/infra/git-review/usage.html

Reviewed-on: https://gerrit.openafs.org/12884
Reviewed-by: Benjamin Kaduk <kaduk@mit.edu>
Tested-by: Benjamin Kaduk <kaduk@mit.edu>
(cherry picked from commit c7c71d2429)

Reviewed-on: https://gerrit.openafs.org/12901
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Mark Vitale <mvitale@sinenomine.net>
Reviewed-by: Benjamin Kaduk <kaduk@mit.edu>
(cherry picked from commit 833e2783a3)

Change-Id: If071b6bd92cf0cec92b1096fa6a86ea13ad64468
Reviewed-on: https://gerrit.openafs.org/12973
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Mark Vitale <mvitale@sinenomine.net>
Reviewed-by: Stephan Wiesand <stephan.wiesand@desy.de>

.gitignore

@@ -37,6 +37,7 @@ rs_state.ini
 config.log
 
 !.gitignore
+!.gitreview
 !.cvsignore
 !.splintrc
 

.gitreview

@@ -0,0 +1,4 @@
+[gerrit]
+host=gerrit.openafs.org
+port=29418
+project=openafs