Update the the Apache Metron Web Page

The Apache Metron web page has two issues today:
1. The website design is from the 90s
2. The links on the current web page don't go anywhere or has no content.

Issue 1 can be addressd by using the new web page designed submitted by Houshang. See details here: https://www.dropbox.com/s/e1bbsfz7xvgod14/Metron-1b.png?dl=0

Issue 2 can be addressed by linking most of the deep dive content from the home page to the apache metron wiki pages since it is a lot easier to maintain/update content on wiki as opposed to the web page. The web page should be primarily static but the links from the web page should point to the metron wiki that should be constantly updated.