Lots of new code for importer and some preferences.

app/Support/FireflyConfig.php

@@ -0,0 +1,91 @@
+<?php
+/**
+ * FireflyConfig.php
+ * Copyright (C) 2016 thegrumpydictator@gmail.com
+ *
+ * This software may be modified and distributed under the terms
+ * of the MIT license.  See the LICENSE file for details.
+ */
+
+declare(strict_types = 1);
+
+namespace FireflyIII\Support;
+
+use Auth;
+use Cache;
+use FireflyIII\Models\Configuration;
+use FireflyIII\Models\Preference;
+
+/**
+ * Class FireflyConfig
+ *
+ * @package FireflyIII\Support
+ */
+class FireflyConfig
+{
+    /**
+     * @param $name
+     *
+     * @return bool
+     * @throws \Exception
+     */
+    public function delete($name): bool
+    {
+        $fullName = 'preference' . Auth::user()->id . $name;
+        if (Cache::has($fullName)) {
+            Cache::forget($fullName);
+        }
+        Preference::where('user_id', Auth::user()->id)->where('name', $name)->delete();
+
+        return true;
+    }
+
+    /**
+     * @param      $name
+     * @param null $default
+     *
+     * @return Configuration|null
+     */
+    public function get($name, $default = null)
+    {
+        $fullName = 'ff-config-' . $name;
+        if (Cache::has($fullName)) {
+            return Cache::get($fullName);
+        }
+
+        $config = Configuration::where('name', $name)->first(['id', 'name', 'data']);
+
+        if ($config) {
+            Cache::forever($fullName, $config);
+
+            return $config;
+        }
+        // no preference found and default is null:
+        if (is_null($default)) {
+            // return NULL
+            return null;
+        }
+
+        return $this->set($name, $default);
+
+    }
+
+    /**
+     * @param        $name
+     * @param string $value
+     *
+     * @return Configuration
+     */
+    public function set($name, $value): Configuration
+    {
+        $item       = $this->get($name, $value);
+        $item->data = $value;
+        $item->save();
+
+        Cache::forget('ff-config-' . $name);
+
+        return $item;
+
+    }
+
+}