Updating license copyrights

Since everybody likes to copyright everything.
Updated README and install params

Cherry picked from e4a06aa2a25

Conflicts:
	README.md
	setup.py
Updating README instructions

Since the README was cherry-picked from Horde the instructions
needed some love.  There's also new feature documentation
such as reading from stdin.  Random tracker port selection is
simply documented in the herd --help doc.

There's also several grammar fixes included in the README update.