[jbosstools-dev] use docker for jbosstools-website

Hey, Its been 8 months since we started having a docker image (https://hub.docker.com/r/jbosstools/jbosstools-website/) for doing local builds of tools.jboss.org and it seem to be working well. I've moved the docs for using docker up front and center at https://github.com/jbosstools/jbosstools-website and thus if you before been fighting using the native setup - you shouldn't need to mess with that unless you really want to. Also a friendly reminder that new content very welcome for Blog, new and noteworthy and the features pages :) /max http://about.me/maxandersen