Don't crash if we can't connect to memcached.
Don't crash if we can't connect to memcached.

Change-Id: I301d5427a6c6c1c596f8b18773b2fa9d91ff6fa9
Reviewed-on: http://review.northscale.com/1174
Reviewed-by: Steve Yen <ef850f73f7832052d3c6d9b5ddd3a1716d9a57f1@gmail.com>
Tested-by: Steve Yen <ef850f73f7832052d3c6d9b5ddd3a1716d9a57f1@gmail.com>

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