start using happy_weather_api, fix #8 sky reseting issue

init.lua

@@ -1,13 +1,29 @@
 local modpath = minetest.get_modpath("weather_pack");
-dofile(modpath.."/weather_core.lua")
-dofile(modpath.."/snow.lua")
+
+-- If skylayer mod not located then embeded version will be loaded.
+if minetest.get_modpath("skylayer") == nil then
+  dofile(modpath.."/embedded_sky_layer_api.lua")
+end
+
+-- If happy_weather_api mod not located then embeded version will be loaded.
+if minetest.get_modpath("happy_weather_api") == nil then
+  dofile(modpath.."/embedded_happy_weather_api.lua")
+  dofile(modpath.."/commands.lua")
+end
+
+-- Happy Weather utilities
+dofile(modpath.."/utils.lua")
+
+dofile(modpath.."/light_rain.lua")
 dofile(modpath.."/rain.lua")
+dofile(modpath.."/heavy_rain.lua")
+dofile(modpath.."/snow.lua")
 
 if minetest.get_modpath("lightning") ~= nil then
   dofile(modpath.."/thunder.lua")
 end
 
--- If not located then embeded skycolor mod version will be loaded.
-if minetest.get_modpath("skycolor") == nil then
-  dofile(modpath.."/skycolor.lua")
-end
+-- Turn off lightning mod 'auto mode'
+lightning.auto = false
+
+dofile(modpath.."/abm.lua")