enable tight layout in static charts
enable tight layout in static charts

Change-Id: Ic0336df82c600dd8b18195968a01252b2941e12c
Reviewed-on: http://review.couchbase.org/30526
Tested-by: buildbot <80754af91bfb6d1073585b046fe0a474ce868509@couchbase.com>
Reviewed-by: Pavel Paulau <dd88eded64e90046a680e3a6c0828ceb8fe8a0e7@gmail.com>

couchbase/cbmonitor,couchbase/cbmonitor