- add SolrIndexBuilder artisan command

- Sitelinkcontroller: data filter via raw sql
- primary key for HasValue model
- config/solarium.php new config values
- bug on migration fie for document_xml_cache

database/migrations/2019_08_29_115137_create_document_xml_cache_table.php

@@ -14,10 +14,10 @@ class CreateDocumentXmlCacheTable extends Migration
     public function up()
     {
         Schema::create('document_xml_cache', function (Blueprint $table) {
-            $table->integer('id')->primary();
+            $table->integer('document_id')->primary();
             $table->integer('xml_version');
             $table->string('server_date_modified', 50)->nullable();
-            $table->string('xml_data')->nullable();
+            $table->text('xml_data')->nullable();
         });
     }