Update Wiki for Apache Wave

[Yuri Z]

I stumbled upon the Wiki page for Apache
Wave<http://en.wikipedia.org/wiki/Apache_Wave>- and my impression was
that it's of very low quality and conveys very
little information about Apache Wave and Wave in a Box project. Most of the
information is related to Google Wave. I  thought that it could be nice to
discuss how we can improve /restructure the Wiki entry for Apache Wave.