many small updates

bidder: some extra debug info in campaign filtering
redisr_bidtest: ident code matches hostnames like rtb-s(\d+) now
simulator: changes for forcing a bid (avoid freq/spend cap and imagesize
filter), plus changes for python Requests module v0.1.4 to v1.1.0)
update_campaign_data: changed campaign 8 hardcoded one to be good for
100% bid response testing with simulator. (no country restriction, no pl
whitelist, extremely low default bid)
- start_tornadoes: command line option for the number of processes to
spawn.