Refs #653 - Move sessions table to system

modules/backend/database/migrations/2014_09_26_000007_Db_Backend_Sessions.php

@@ -1,33 +0,0 @@
-<?php
-
-use Illuminate\Database\Schema\Blueprint;
-use Illuminate\Database\Migrations\Migration;
-
-class DbBackendSessions extends Migration {
-
-  /**
-   * Run the migrations.
-   *
-   * @return void
-   */
-  public function up()
-  {
-    Schema::create('sessions', function($t)
-    {
-      $t->string('id')->unique();
-      $t->text('payload');
-      $t->integer('last_activity');
-    });
-  }
-
-  /**
-   * Reverse the migrations.
-   *
-   * @return void
-   */
-  public function down()
-  {
-    Schema::drop('sessions');
-  }
-
-}

modules/system/database/migrations/2014_10_01_000013_Db_System_Sessions.php

@@ -0,0 +1,34 @@
+<?php
+
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Database\Migrations\Migration;
+
+class DbSystemSessions extends Migration
+{
+
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::create('sessions', function(Blueprint $table)
+        {
+            $table->string('id')->unique();
+            $table->text('payload')->nullable();
+            $table->integer('last_activity')->nullable();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::dropIfExists('sessions');
+    }
+
+}