Code cleanup.

app/Models/PiggyBank.php

@@ -3,30 +3,50 @@
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Database\Eloquent\SoftDeletes;
 
+/**
+ * Class PiggyBank
+ *
+ * @package FireflyIII\Models
+ */
 class PiggyBank extends Model
 {
     use SoftDeletes;
 
+    /**
+     * @return \Illuminate\Database\Eloquent\Relations\BelongsTo
+     */
     public function account()
     {
         return $this->belongsTo('FireflyIII\Models\Account');
     }
 
+    /**
+     * @return array
+     */
     public function getDates()
     {
         return ['created_at', 'updated_at', 'deleted_at', 'startdate', 'targetdate'];
     }
 
+    /**
+     * @return \Illuminate\Database\Eloquent\Relations\HasMany
+     */
     public function piggyBankEvents()
     {
         return $this->hasMany('FireflyIII\Models\PiggyBankEvent');
     }
 
+    /**
+     * @return \Illuminate\Database\Eloquent\Relations\HasMany
+     */
     public function piggyBankRepetitions()
     {
         return $this->hasMany('FireflyIII\Models\PiggyBankRepetition');
     }
 
+    /**
+     * @return \Illuminate\Database\Eloquent\Relations\MorphMany
+     */
     public function reminders()
     {
         return $this->morphMany('FireflyIII\Models\Reminder', 'remindersable');