CSPSP: update

-new buy menu design (weapon stat bars still in progress)
-redid the held gun graphicns since reloading animation shows the entire gun
-fixed a bug where explosions would skip some players (was sorting the player list inside a loop)
-fixed a bug in the collision ray traversal code (forgot to break after reaching the final cell)

CSPSP: update

-new radar (enemies are shown only when they fire)
-if you die while throwing a nade, the nade still goes off
-found another potential multiplayer bug (dropping a gun/throwing a nade right before getting the dying message from the server would unsync the client)