Move this repo to its own organisation

[ericm]

It makes the project look more official and gives us access to features like GitHub teams and projects.

[CaelumF]

I like the idea of an organisation. It's not entirely necessary since there are only ~8 people working on it and we all know each other well, but I think for the sake of a Software Development class it would be very good practice. Maybe we will grow to more people in the future too :)

Before we make any organisation, we should be more secure with our name. @paranoidcake and I were happy with Edu-change for the hackathon, but a public facing application has different requirements. I've just googled "edu-change" now and there are a few relatively prominent results, the largest being educhange.com.

It's possible the dojo has its own Github organisation that Michael has created. Again, for the sake of a full software development experience I think it's better we have our own organisation, but I'd like to give Michael a chance to raise any good points to the contrary.

In the meantime, perhaps we should think of a different name :)