Fixes done during small-scale testing

including a rather embarrasing error...
Made it easier to change tracker type

run.bat takes an argument with tracker type.
Moved ConnHandler to separete file

Easier to maintain that way.
I intended it to be a small "private" class, but it has quickly outgrown
the ETServer class... More workz tomorrowz?
Now we have no global stuffs.
Fixed some error handeling
Did some small fixes to fps command

Now also tested with Rex tracker!
Resolved merge conflict
Did some clean up after merge resoled.
Merge pull request #44 from maxnordlund/dell_Server_processes2

Eftersom Max givit mig tillstånd, så mergar jag det här nu.
Wish me luck!