allow a package version to be specified
Making mode configurable
Added entries for existing socket options to README.md
Merge pull request #75 from vt102/adding_socket_attribs_to_readme

Added entries for existing socket options to README.md
Merge pull request #74 from divideandconquer/master

Making mode configurable
Merge pull request #71 from JamesCohen-awin/master

Allow a package version to be specified