Include analysis language in Spoofax feature.
Added a readme for buckminster spoofax-libs build.
Add spoofax-libs project.
Added scripts to reset the workspace and clone needed git repositories for spoofax-libs build.
Include extracted libraries inside spoofax-libs.jar.
Add type system language to Spoofax feature.
Update README

Clone before building.
Update director-make.sh

Fix incorrect director link.
Merge branch 'master' into unstable