Assorted documentation tweaks for 2.0

* Android client build instructions
* Code downloading
* Protocol build
* VM build and run
Add Video section.
2.0.0 release notes
Update server installation instructions for 2.0
Update server configuration page for 2.0

Call this a quick first pass. It could use a re-write to better
organize the data and make everything clearer for users.
Cleaned up Server Install page