added method to be able to reuse the console application

[anho]

This comes in handy, when you want to do more with the actual application object then just to run it.

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[Ocramius]

@anho shouldn't you just setup the CLI application on your own instead?

[anho]

Sure, I could. But actually I want to reuse existing code, even if there are only a few lines of code.

[Ocramius]

Thought a bit more about this and it makes sense indeed. I'd need you to do following before merge though:

• add a test case for the newly introduced method (just needs to test that an application is indeed created, doesn't need to run it)
• add documentation for the new feature (if needed, please check the existing docs)

[anho]

Here we go.