Console: Temporarily hardcoded F11 functionality while console open

Because the bindings subsystem is not accessible when the console
is open, the F11 is now hardcoded to togglefullscreen/releasemouse
when the console is open.

Todo for later: Revert this when the bindings subsystem gets all events first.

doomsday/engine/portable/src/con_main.c

@@ -1561,7 +1561,16 @@ boolean Con_Responder(ddevent_t* ev)
     if(!IS_KEY_PRESS(ev))
         return false;
 
-    // In this case the console is active and operational.
+    // The console is active and operational.
+
+    // Temporary kludge: since bindings are not presently accessible when the
+    // console is open, use some hardcoded keys.
+    if(ev->toggle.id == DDKEY_F11)
+    {
+        DD_Execute(true, altDown? "releasemouse" : "togglefullscreen");
+        return true;
+    }
+
     // Check the shutdown key.
     if(!conInputLock)
     {