General cleaning up:
 - Moved MumbleProtocol implementation into test client project
 - Added some notes on moving voice decoding around (into MumbleConnection)
 - Moved all encryption related stuff to be hidden within MumbleConnection

Signed-off-by: Martin Evans <martindevans@gmail.com>
Merge branch 'master' of github.com:martindevans/MumbleSharp
correct merge conflicts

correct merge conflicts.