Update Forge, mappings and dependencies.

build.gradle

@@ -29,10 +29,10 @@ sourceCompatibility = 1.8
 targetCompatibility = 1.8
 
 minecraft {
-    version = "1.12.2-14.23.4.2732"
+    version = "1.12.2-14.23.4.2760"
     runDir = "run"
     useDepAts = true
-    mappings = "snapshot_20180714"
+    mappings = "stable_39"
 
     replaceIn "RS.java"
     replace "@version@", project.version
@@ -52,8 +52,8 @@ repositories {
 }
 
 dependencies {
-    deobfCompile "mezz.jei:jei_1.12.2:4.11.0.204:api"
-    runtime "mezz.jei:jei_1.12.2:4.11.0.204"
+    deobfCompile "mezz.jei:jei_1.12.2:4.12.0.216:api"
+    runtime "mezz.jei:jei_1.12.2:4.12.0.216"
     deobfCompile "li.cil.oc:OpenComputers:MC1.12.2-1.7.2.67:api"
     compile "inventory-tweaks:InventoryTweaks:1.63:api"
 }

src/main/java/com/raoulvdberge/refinedstorage/RS.java

@@ -38,13 +38,13 @@ public final class RS {
     public final SimpleNetworkWrapper network = NetworkRegistry.INSTANCE.newSimpleChannel(ID);
     public final CreativeTabs tab = new CreativeTabs(ID) {
         @Override
-        public ItemStack getTabIconItem() {
+        public ItemStack createIcon() {
             return new ItemStack(RSItems.STORAGE_HOUSING);
         }
     };
     public final CreativeTabs coversTab = new CreativeTabs(ID + ".covers") {
         @Override
-        public ItemStack getTabIconItem() {
+        public ItemStack createIcon() {
             ItemStack stack = new ItemStack(RSItems.COVER);
 
             ItemCover.setItem(stack, new ItemStack(Blocks.STONE));

src/main/java/com/raoulvdberge/refinedstorage/util/RenderUtils.java

@@ -420,7 +420,7 @@ public final class RenderUtils {
 
         for (int i = 0; i < lines.size(); ++i) {
             if (i == 0) {
-                lines.set(i, stack.getRarity().rarityColor + lines.get(i));
+                lines.set(i, stack.getRarity().color + lines.get(i));
             } else {
                 lines.set(i, TextFormatting.GRAY + lines.get(i));
             }