Make install-dev installs sass and python dev packages.

Makefile

@@ -22,10 +22,9 @@ install-python:
 
 
 install-js:
-	npm config set loglevel warn
+	sudo npm config set loglevel warn
 	npm install
 
-
 install-nltk-data:
 	./scripts/download-nltk-data.sh
 
@@ -40,8 +39,11 @@ javascript:
 install-test:
 	pip install -q -r requirements/test.txt
 
+install-dev:
+	sudo gem install sass
+	pip install -q -r requirements/dev.txt
 
-install: install-system install-node install-wheels install-python install-js install-nltk-data install-test javascript
+install: install-system install-node install-wheels install-python install-js install-nltk-data install-test install-dev javascript
 
 test:
 	./scripts/test.sh

README.rst

@@ -47,6 +47,7 @@ To install all dependencies:
 
 .. code:: bash
     make install
+    make install-dev
 
 
 Running the Development Server

apt-packages.txt

@@ -18,3 +18,4 @@ python2.7-dev
 python-mysqldb
 python-pip
 python-software-properties
+rubygems
\ No newline at end of file