1. Finish README.md

2. Add command-line argument support:
	1. Specify IP version in arg
	2. Specify local hostname:port in arg (enclose in paranthesis if IPv6)
	3. Specify remote hostname:port in arg (enclose in paranthesis if IPv6)
	4. Try making every aspect of the program configurable via args

3. Add support for configuration files, which can be specified via a command-line arg