Swap call in config_resolver from get_private_networks() to get_all_networks().  Add stub for :get_all_networks in config_resolver_spec so tests will pass
release v0.5.1
Return first adress when multiple are found

Fix #155
Merge pull request #156 from ggiamarchi/fix_multiple_ips

Return first address when multiple are found
Release v0.5.2
Merge branch 'v0.5.x'