MP stuff:
-Disabled player difficulties. All deaths are treated as normal.
-Removed Itemstack and monster position updates that dont actually matter
+Player death messages in chat.
+'/say' command, to issue server messages.
+Player chat shows in the server log
+Console messages from the last session are writen to file when the server stops
+Player spawning now grants 6 seconds of immunity
*Fix there being like 1 pixel between inventory slots where stuff would drop if clicked.