All variables moved to struct ipvs,
most external changes fixed (i.e. init_net removed)

*v3
 timer per ns instead of a common timer in estimator.
Signed-off-by: NHans Schillstrom <hans.schillstrom@ericsson.com>
Acked-by: NJulian Anastasov <ja@ssi.bg>
Signed-off-by: NSimon Horman <horms@verge.net.au>