fabric cleanup, move lang and config to common

platforms/fabric/src/main/java/com/dfsek/terra/fabric/TerraFabricPlugin.java

@@ -163,11 +163,7 @@ public class TerraFabricPlugin implements TerraPlugin, ModInitializer {
 
     @Override
     public Language getLanguage() {
-        try {
-            return new Language(new File(getDataFolder(), "lang/en_us.yml"));
-        } catch(IOException e) {
-            throw new IllegalArgumentException();
-        }
+        return LangUtil.getLanguage();
     }
 
     @Override
@@ -267,10 +263,10 @@ public class TerraFabricPlugin implements TerraPlugin, ModInitializer {
     public void onInitialize() {
         instance = this;
 
-        config = new File(FabricLoader.getInstance().getConfigDir().toFile(), "Terra");
+        this.config = new File(FabricLoader.getInstance().getConfigDir().toFile(), "Terra");
         saveDefaultConfig();
         plugin.load(this);
-        LangUtil.load("en_us", this);
+        LangUtil.load(plugin.getLanguage(), this);
         logger.info("Initializing Terra...");
 
         if(!addonRegistry.loadAll()) {

platforms/fabric/src/main/resources/fabric.mod.json

@@ -20,7 +20,6 @@
     ]
   },
   "mixins": [
-    "terra.mixins.json"
   ],
   "depends": {
     "fabricloader": ">=0.7.4",

platforms/fabric/src/main/resources/terra.mixins.json

@@ -1,14 +0,0 @@
-{
-  "required": true,
-  "minVersion": "0.8",
-  "package": "com.dfsek.terra.fabric.mixin",
-  "compatibilityLevel": "JAVA_8",
-  "mixins": [
-  ],
-  "client": [
-  ],
-  "server": [],
-  "injectors": {
-    "defaultRequire": 1
-  }
-}