Added error reporting to the LEVEL::Execute Function

Added the LEVEL::ConsolePrint Function
Added the quit command this can be used in a config file
Fixed console to make it work more logically and allow for output

OpenArena/oa/config/my.cfg

@@ -29,6 +29,6 @@ set colordepth 16
 set fullscreen 0
 map intro.map
 set maxfps 60
-set rollleft w
-set rollright e
+bind rollleft w
+bind rollright e
 set sound false