add express server to serve content
remove unused css by using grunt-uncss
try and fix some of the issues
Merge pull request #24 from vinitkumar/feature/add-server-fix

Feature/add server fix
updated readme and add start script for express server
Merge pull request #25 from vinitkumar/feature/add-server-fix

updated readme and add start script for express server
edit readme
Merge pull request #26 from vinitkumar/feature/add-server-fix

edit readme
Update README.md