Put the build site into a git repo

Currently the resources for the build.fluidproject.org site live solely on the server. It is both hard to update/maintain and for the most part the backups are done manually (the entire server is also backed up automatically). We should move the sites resources into git and github. This will allow us to version the changes and make it easier for the community to maintain. We will also need to update the server from github on each push.