Merge pull request #1028 from MITx/feature/ned/better-node-installation

Get node.js from a more up-to-date PPA.

create-dev-env.sh

@@ -105,7 +105,7 @@ NUMPY_VER="1.6.2"
 SCIPY_VER="0.10.1"
 BREW_FILE="$BASE/mitx/brew-formulas.txt"
 LOG="/var/tmp/install-$(date +%Y%m%d-%H%M%S).log"
-APT_PKGS="pkg-config curl git python-virtualenv build-essential python-dev gfortran liblapack-dev libfreetype6-dev libpng12-dev libxml2-dev libxslt-dev yui-compressor coffeescript graphviz graphviz-dev mysql-server libmysqlclient-dev"
+APT_PKGS="pkg-config curl git python-virtualenv build-essential python-dev gfortran liblapack-dev libfreetype6-dev libpng12-dev libxml2-dev libxslt-dev yui-compressor nodejs npm graphviz graphviz-dev mysql-server libmysqlclient-dev"
 
 if [[ $EUID -eq 0 ]]; then
     error "This script should not be run using sudo or as the root user"
@@ -192,9 +192,12 @@ case `uname -s` in
         case $distro in
             maya|lisa|natty|oneiric|precise|quantal)
                 output "Installing ubuntu requirements"
+                sudo apt-get install python-software-properties
+                sudo add-apt-repository ppa:chris-lea/node.js
                 sudo apt-get -y update
                 # DEBIAN_FRONTEND=noninteractive is required for silent mysql-server installation
                 sudo DEBIAN_FRONTEND=noninteractive apt-get -y install $APT_PKGS
+                sudo npm install coffee-script
                 clone_repos
                 ;;
             *)