Updates configuration migration section to change schema version and cruise-config.xsd to the latest version.
Updates configuration migration section to change schema version and cruise-config.xsd to the latest version.

ketan/docs.go.cd,gocd/docs.go.cd,gocd/developer.go.cd,ketan/docs.go.cd,gocd/docs.go.cd,gocd/docs.go.cd,ketan/docs.go.cd,gocd/developer.go.cd,gocd/developer.go.cd