Bug 1474: Real progress bars
Bug 1474: Real progress bars

This presently has a bug where sometimes certain nodes' progress bars
will be seen to go from 0% to 100% twice if we're evacuating nodes
along with any other rebalance operation because I count the number of
remaining moves as moves both from and to a node. This may not show up
much in practice, however.

Change-Id: Ife1f018bac3c813f866e09dddec00cf8400c1083
Reviewed-on: http://review.northscale.com/1165
Reviewed-by: Steve Yen <ef850f73f7832052d3c6d9b5ddd3a1716d9a57f1@gmail.com>
Tested-by: Steve Yen <ef850f73f7832052d3c6d9b5ddd3a1716d9a57f1@gmail.com>

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