Added avatar image upload

app/Model/User.php

@@ -283,12 +283,7 @@ class User extends Base
     {
         $this->prepare($values);
         $result = $this->db->table(self::TABLE)->eq('id', $values['id'])->update($values);
-
-        // If the user is connected refresh his session
-        if ($this->userSession->getId() == $values['id']) {
-            $this->userSession->initialize($this->getById($this->userSession->getId()));
-        }
-
+        $this->userSession->refresh($values['id']);
         return $result;
     }
 
@@ -327,6 +322,9 @@ class User extends Base
     {
         return $this->db->transaction(function (Database $db) use ($user_id) {
 
+            // Remove Avatar
+            $this->avatarFile->remove($user_id);
+
             // All assigned tasks are now unassigned (no foreign key)
             if (! $db->table(Task::TABLE)->eq('owner_id', $user_id)->update(array('owner_id' => 0))) {
                 return false;