Sync with indev branch, bump version to 0.4.7

RealBadAngel

2013-06-30 8e03d7ded6441b26e9d44102c0cd2ee39f9e90bc

 technic/sonic_screwdriver.lua

@@ -52,7 +52,7 @@
minetest.register_craft({
   output = "technic:sonic_screwdriver",
   recipe = {
      {"technic:diamond"},
      {"default:diamond"},
      {"technic:battery"},
      {"technic:stainless_steel_ingot"}
      }