starting some work to get ip6tables suport
adding documentation for split_ip_by_version function
commiting changes. totally broken
cleaning up spec tests
adding spec for format_action
adding spec for format_chain
adding spec for split_ip_by_version
adding iptables_prep_option w/spec tests
cleaned up iptables::ipv4::table spec a little
adding format_action and format_chain functions
adding format_port function and its spec file
adding format_protocol function and spec tests
Merge branch 'master' into issues/3_ip6tables_support
adding format_state function and spec tests
handled nil/undef values in format_port
adding format_interface function and spec tests
disabling broken spec tests
testing travis-ci support
adding submodules instead of symlinks
changing submodules to read-only git protocol