Bump pacage to 0.1.12

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Importers/ShaderGraphImporter.cs

 using UnityEditor;
 using UnityEditor.Experimental.AssetImporters;
 
-[ScriptedImporter(1, ShaderGraphImporter.ShaderGraphExtension)]
+[ScriptedImporter(2, ShaderGraphImporter.ShaderGraphExtension)]
 public class ShaderGraphImporter : ScriptedImporter
 {
     public const string ShaderGraphExtension = "shadergraph";

MaterialGraphProject/Assets/UnityShaderEditor/package.json

 {
     "name": "com.unity.shadergraph",
     "description": "Shader Graph",
-    "version": "0.1.11",
+    "version": "0.1.12",
     "unity": "2018.1",
     "dependencies": {
     }