Added commandline options to server.

Options include, but are not limited to:
listening address
logging level
server name

arguments include (and are limited to):
tracker type.

Server now takes a tracker to use, instead of creating it, allowing for
more dynamic use of the server.
Merged changes from dell_Server_async
Fixed the Tobii tracker to reflect changes in server.

User now has to register listeners by them selves.
Removed remains of debugging

That print statement can get very annoying...