Node.js Hello-World app

NodeJS hello world app for running a server on localhost and testing it out using mocha and istanbul.

Steps for testing:

1. Install Node.js using the official website here. Check the version using the command:

node -v

2. Install npm: It comes installed with Node.js. Check the version using the command:

npm -v

3. Inside the local repository, run the command:

npm test

This would run the test command specified inside package.json file using mocha and istanbul. Mocha is a flexible javascript framework. Istanbul is a for ensuring complete code coverage. The command would generate test reports, which can be viewed, graphically, under coverage/lcov-report/index.html.