use more pretty titles and more reliable filenames

Change-Id: I5b9ddaf9e8d92a754c1284407c19d606e49984eb
Reviewed-on: http://review.couchbase.org/24939
Tested-by: buildbot <build@couchbase.com>
Reviewed-by: Pavel Paulau <pavel.paulau@gmail.com>
Tested-by: Pavel Paulau <pavel.paulau@gmail.com>