Continued a bit:

Continued a bit:
- start of rewriting unit tests, these old where not very well written anyway
- created phpunit.xml.dist
- created composer.json/lock files. No, I'm not going to replace my class
  loader with it. I still like mine better. :-)
- created tests/bootstrap.php which contains an ugly hack for loading my tests
  first. Maybe there is a better way?
- moved class to proper (deeper) location

Signed-off-by: Roland Häder <roland@mxchange.org>