minor cleanup fixes on main Vagrant file

 On branch usr

	modified:   Vagrantfile
	deleted:    usr/bin/jfd
deploy usr scripts to Vagrant box build

 On branch usr

	modified:   .gitignore
	modified:   Vagrantfile
	new file:   usr/bin/jfd
	new file:   usr/libexec/jfd-deploy
	new file:   usr/libexec/jfd-install
	new file:   usr/libexec/lib/utils.sh
	modified:   virtual_machines/devbox/Vagrantfile
	new file:   virtual_machines/devbox/provision.sh