Some re-arranging. Nothing significant.

I've started dropping `public` from `public method`. It's a bit
pointless and I think minimalism is the new PHP trend ;)

I've also moved everything that's public above everything that's
protected. Consumers of an API would _first_ only be interested in the
public api. Extenders of an API may have to dig deeper, and maintainers
even deeper (private).
writeStreams is currently not in use.
200.000 seconds is excessive. This loops anyway, so there's not to use

a very low amount. 10 seconds is probably still way too much.
We don't need this behavior.
Refactored read-stream handling.
Making it clearer what ->server is. It's just a php resource.
Unneeded use clauses.
Introducing 'tick'
Prettier output for phpcs.
Not allowing hhvm to succeed. The test should fail.
Merge pull request #3 from evert/cleanups

Some re-arranging.