#20 iw.recipe.pound optionally specify a listen address

[russell_sim]

Added ability to optionally specify a listen address via via adress:port in the balancers section instead of just a port specification.

new:
blancers =
one 0.0.0.0:80 127.0.0.1:8080 127.0.0.1:8081

port only specification is also still valid.

Also fixed a problem i was having building an egg because cfg_tmpl files weren't included when running

python setup.py bdist_egg

[russell_sim]

patch to add ability to set the listen address