Separate in-game bindings from menu bindings

Also preemptive version bump

scene/credits.lua

@@ -80,8 +80,7 @@ function CreditsScene:render()
 end
 
 function CreditsScene:onInputPress(e)
-    if e.input == "menu_decide" or e.scancode == "return" or
-       e.input == "menu_back" or e.scancode == "delete" or e.scancode == "backspace" then
+    if e.input == "menu_decide" or e.input == "menu_back" then
         scene = TitleScene()
         switchBGM(nil)
 	end