BZ #1220596 - Allow override of neutron load balancer timeouts.

[jguiditta]

This is an array of any timeouts the user wishes to set, so can
be expanded or collapsed.

[jguiditta]

After applying the patch and running with the defaults of 30s each, I get:

listen neutron-api
  bind 192.168.201.103:9696
  bind 192.168.201.104:9696
  bind 192.168.201.105:9696
  mode  tcp
  option  tcplog
  timeout  client 30s
  timeout  server 30s
  timeout  http-request 30s
  server pcmk-c1a1 192.168.200.10:9696  check inter 1s
  server pcmk-c1a2 192.168.200.20:9696  check inter 1s
  server pcmk-c1a3 192.168.200.30:9696  check inter 1s

[jistr]

Visual review -- LGTM