Build a test for the Express factory

[makara]

Maybe it can make your life easier if you understand the Express factory. Please do this by building a test for it, in factories.express.mocha.js.

The test should cover:

• Use the factory to get a builder which is a function.
• Use the builder to get an application which is an Express application.
• Initialize function.
• args and options.

[makara]

Please send this to the master branch.

[makara]

Closing.