Fixing jade version to 0.35.0

I tried to run the code and got errors for the jade template, mainly
* unexpected token "indent"
*  'doctype 5' is deprecated

I figured the app needs to be run on a previous version of Jade 
(ref: https://github.com/visionmedia/jade/blob/master/History.md)

Here I am updating package.json to fix the version of jade to 0.35.0. This fixes the problem.