fix possible buffer overflow copy/paste error
add a sprinkling of "unsigned" or "const" to cleanup all the compiler
warnings
fix/swap the format strings for double and int functions
Add a drop target for moving sa player to a new team.

Having implemented this, I wonder if it would be better to have an extra
row and column to drag things into?
remove the "new team" drop target in favour of always having an empty border

(which was annoyingly easy to implement compared to the old, deleted solution!)
tweak TODO
wrap the client <-> server messages in an Event, containing the id of
the gun and the time of the event.
cope with not being told who we are by the server for a bit longer.
Add some basic event queueing and re-ordering support. This //really//needs some tests
some refactorings to make unittesting easier
Begining of a unittest for the event queuing.

this seems to hang for some reason :-(
use a single instance of ServerMsgHandler in all of the Server instances
Add some docs and an extra testcase
Don't try to overload functions in C, it can't do it!