Make it to where we can use both elixir and gold combined to upgrade wall sections... by this I mean if it costs 3 million gold or 3 million elixir, make it to where we can use 1.5 million gold combined with 1.5 million elixir (or if we have the total needed but not the exact half and half that would work too. Ex. 2 mil gold plus 1 mil elixir)