vagrant_substrate: builds the base layer
script to install Vagrant into substrate
Substrate creates the zip
vagrant_substrate: clean up more unnecessary files
Move substrate stuff in substrate dir
Update READMEs
pacakge: scripts for Ubuntu
Make the shell scripts executable
substrate/util: make sure dirs are 0755
substrate: make run.sh +x
substrate: allow run path to be relative
substarte: don't delete the output dir
package: darwin support
package; make package_Darwin executable
package: escape some variables for Ubuntu and CentOS
package: detect darwin
substrate: fix some problems on older versions of CentOS
substrate: use the OS as the package name
substrate: automatically determine homebrew user
substrate/util: don't set owner/group