added F5 reload script key which will re-load the current script and discover any newly added event handler functions

git-svn-id: svn://anubis/anaglym/trunk@168 99a6e188-d820-4881-8870-2d33a10e2619

tests/cannon.lua

@@ -34,3 +34,8 @@ function mousebutton_down_event(button)
         button1()
     end
 end
+
+--function update_overlay_event(width, height)
+--    local tw, th = ag.getTextSize("Hi there", 18)
+--    ag.drawText("Hi there", 1, 1, 1, 18, width - tw - 4, height - th - 4)
+--end