Timeout vbuckettransfer after 10s of no messages.
Timeout vbuckettransfer after 10s of no messages.

There should either be a constant stream of messages or a hangup when
transferring vbuckets.  If the messages stall for 10s, something bad
happened and the transfer should be considered failed.

Change-Id: I39bc1a7ade62fcca611f393153b2ad6567ae0f14
Reviewed-on: http://review.northscale.com/1777
Tested-by: Steve Yen <ef850f73f7832052d3c6d9b5ddd3a1716d9a57f1@gmail.com>
Reviewed-by: Steve Yen <ef850f73f7832052d3c6d9b5ddd3a1716d9a57f1@gmail.com>

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