Support Laravel 4 (again) (elasticquent#66)

* Revert "Methods that Elasticquent assumes will be implemented by, and inherited from, Eloquent."
  - This reverts commit 1166490.
  - Support Laravel 4. Fix elasticquent#63.
* Disable vendor:publish for laravel 4 elasticquent#63

Author: chuangbo

src/ElasticquentServiceProvider.php

@@ -13,9 +13,11 @@ class ElasticquentServiceProvider extends ServiceProvider
      */
     public function boot()
     {
-        $this->publishes([
-            __DIR__.'/config/elasticquent.php' => config_path('elasticquent.php'),
-        ]);
+        if (ElasticquentSupport::isLaravel5()) {
+            $this->publishes([
+                __DIR__.'/config/elasticquent.php' => config_path('elasticquent.php'),
+            ]);
+        }
     }
 
     /**

src/ElasticquentSupport.php

@@ -2,7 +2,14 @@
 
 namespace Elasticquent;
 
+use Illuminate\Foundation\Application;
+
 class ElasticquentSupport
 {
     use ElasticquentClientTrait;
+
+    public static function isLaravel5()
+    {
+        return version_compare(Application::VERSION, '5', '>');
+    }
 }

src/ElasticquentTrait.php

@@ -15,7 +15,7 @@
  */
 trait ElasticquentTrait
 {
-    use ElasticquentClientTrait, EloquentMethods;
+    use ElasticquentClientTrait;
 
     /**
      * Uses Timestamps In Index