Make pool and route names configurable

daemon.rb: Read POOL_NAME and ROUTE_NAME settings from load-balancer.conf
and use the values of these settings when creating new pools and routing
rules.  As with the MONITOR_NAME and MONITOR_PATH settings, %a expands to
the application's name and %n expands to its namespace.

Update the README.md file and shipped load-balancer.conf file with these
new settings.
Automatic commit of package [rubygem-openshift-origin-load-balancer-common] release [0.24-1].
Automatic commit of package [rubygem-openshift-origin-load-balancer-daemon] release [0.8-1].