fixed positioning of memcached bucket type usage gauge
fixed positioning of memcached bucket type usage gauge

Some time ago we needed some special style for it, but not anymore.

Change-Id: If1f3a46aeb65d755ac47c21aa225eb7675a579ca
Reviewed-on: http://review.couchbase.org/6892
Tested-by: Aliaksey Kandratsenka <340b8e09ca65cd3fc686427fcfed17e87eaf61e2@gmail.com>
Reviewed-by: Benjamin Young <fe09bc2ef2737a3258f978e26226dcbac1b3f948@couchbase.com>

mschoch/ns_server,nimishzynga/ns_server,mschoch/ns_server,pavel-blagodov/ns_server,t3rm1n4l/ns_server,nimishzynga/ns_server,ceejatec/ns_server,pavel-blagodov/ns_server,daverigby/ns_server,membase/ns_server,mschoch/ns_server,vzasade/ns_server,nimishzynga/ns_server,pavel-blagodov/ns_server,membase/ns_server,vzasade/ns_server,t3rm1n4l/ns_server,nimishzynga/ns_server,ceejatec/ns_server,daverigby/ns_server,ceejatec/ns_server,nimishzynga/ns_server,t3rm1n4l/ns_server,vzasade/ns_server,mschoch/ns_server,t3rm1n4l/ns_server,ceejatec/ns_server,daverigby/ns_server,membase/ns_server,membase/ns_server,ceejatec/ns_server,pavel-blagodov/ns_server,mschoch/ns_server,daverigby/ns_server,t3rm1n4l/ns_server,membase/ns_server,vzasade/ns_server,membase/ns_server,mschoch/ns_server,ceejatec/ns_server,nimishzynga/ns_server,daverigby/ns_server