Move website to github

[berryma4]

This should include the wiki, and should be cleaned up for new release process.

Also, add a compatibility list for each release.

Updating issue

[berryma4]

The wiki has been moved to github, and a new initial web site has been put up.

[berryma4]

https://github.com/ControlSystemStudio/cs-studio/wiki/Compatibility

was added to the wiki for a compatibility and know bugs list