Update yarn mappings

gradle.properties

@@ -4,7 +4,7 @@ org.gradle.daemon=false
 # Fabric Properties
 	# check these on https://fabricmc.net/use
 	minecraft_version=1.15-pre1
-	yarn_mappings=1.15-pre1+build.3:v2
+	yarn_mappings=1.15-pre1+build.7:v2
 	loader_version=0.7.1+build.173
 
 # Mod Properties

src/main/java/com/minelittlepony/client/model/ClientPonyModel.java

@@ -38,12 +38,6 @@ public abstract class ClientPonyModel<T extends LivingEntity> extends MsonPlayer
         attributes.updateLivingState(entity, pony);
     }
 
-    // Broken bridge
-    @Override
-    public void setAngles(T entity, float move, float swing, float ticks, float headYaw, float headPitch) {
-        super.method_17087(entity, move, swing, ticks, headYaw, headPitch);
-    }
-
     @Override
     public ModelAttributes<?> getAttributes() {
         return attributes;

src/main/java/com/minelittlepony/client/model/PonyElytra.java

@@ -30,12 +30,6 @@ public class PonyElytra<T extends LivingEntity> extends AnimalModel<T> {
         return ImmutableList.of(leftWing, rightWing);
     }
 
-    // broken bridge
-    @Override
-    public void accept(ModelPart t) {
-        super.method_22696(t);
-    }
-
     /**
      * Sets the model's various rotation angles.
      *

src/main/java/com/minelittlepony/client/model/entity/ModelBreezie.java

@@ -28,12 +28,6 @@ public class ModelBreezie<T extends LivingEntity> extends BipedEntityModel<T> im
         textureHeight = 64;
     }
 
-    // broken bridge
-    @Override
-    public void accept(ModelPart t) {
-        super.method_22696(t);
-    }
-
     @Override
     public void init(ModelContext context) {
         neck = context.findByName("neck");

src/main/java/com/minelittlepony/client/render/entity/RenderPonyTrader.java

@@ -24,6 +24,6 @@ public class RenderPonyTrader extends RenderPonyMob.Caster<WanderingTraderEntity
     @Override
     public void scale(WanderingTraderEntity entity, MatrixStack stack, float ticks) {
         super.scale(entity, stack, ticks);
-        stack.scale(0.9375F, 0.9375F, 0.9375F);
+        stack.scale(BASE_MODEL_SCALE, BASE_MODEL_SCALE, BASE_MODEL_SCALE);
     }
 }