[GSOC-UPDATE](10.08) Impress Remote

[Andrzej J. R. Hunt]

Hi everyone,

The latest:
- Dialog with pin entry working, linked to the Server code.
- Communication code refactored to allow pairing as per design, and to 
simplify code reuse between network and bluetooth code.
- Pairing implemented on the LO side.

That means I can now implement the pairing on the Android side, which 
should be fairly simple to do.

Cheers,

Andrzej