Update to standards
Rename public css folder
Update doc sections
Setup app port to 3000
Ensure server listens on port 3000
Update express dependecy to version 4
Update package details & npm scripts
Update readme
Merge branch 'update-express-app' of github.com:sehsarah/nuwzullund into update-express-app
Remove unneccessary bin folder
Merge pull request #2 from sehsarah/update-express-app

Update express app