Make 'list' a little less useless
Updated install script for 2.9.x compatibility.
Added support to install a specific nightly.
Updated the director script with an option to install from an update …
…site on the file system.
Added eclipse director script, for easy command-line
provisioning operations. Modify it to point to your eclipse directory
(or pass it using --eclipse-dir), and easily install or uninstall
scala plugin versions.