Use namespaces

[GaryJones]

In relation to ticket to drop the WPCOM prefix, all of the files could be namespaced, and therefore class names simplified even more.

Automattic\Liveblog would seem like the most obvious namespace to use.

[pyronaur]

Along with namespaces, perhaps we can add autoloading as well?

[GaryJones]

Along with namespaces, perhaps we can add autoloading as well?

That would certainly be possible, and would probably be possible even with the current prefixed un-namespaced classes as well. Worth moving to a separate Issue to keep it distinct?