Fix on old cookie format decryption

LV 4.x uses MCRYPT_RIJNDAEL_128 and LV 5.x AES-256-CBC
so there was a conflict between algoriths, fix its
delete the session cookie if it cant be decrypted
so user will get logged out if its has an older one.

Change-Id: I4c2339230698c08186b198cba99d5f2523dce1d4

app/Http/Middleware/EncryptCookies.php

@@ -1,7 +1,8 @@
 <?php namespace App\Http\Middleware;
 
+use Symfony\Component\HttpFoundation\Request;
 use Illuminate\Cookie\Middleware\EncryptCookies as BaseEncrypter;
-
+use Illuminate\Contracts\Encryption\DecryptException;
 /***
  * Class EncryptCookies
  * @package App\Http\Middleware
@@ -16,4 +17,24 @@ class EncryptCookies extends BaseEncrypter
     protected $except = [
         //
     ];
+
+    protected function decrypt(Request $request)
+    {
+        foreach ($request->cookies as $key => $c) {
+            if ($this->isDisabled($key)) {
+                continue;
+            }
+
+            try {
+                $request->cookies->set($key, $this->decryptCookie($c));
+            } catch (DecryptException $e) {
+                $request->cookies->set($key, null);
+            }
+            catch(\ErrorException $e1){
+                $request->cookies->set($key, null);
+            }
+        }
+
+        return $request;
+    }
 }