title: Laravel 5 Function name must be a string bug
body: <p>I get fatal error:</p>
  
  <blockquote>
    <p>Function name must be a string</p>
  </blockquote>
  
  <p>When try to <code>return $redirect()-&gt;to(blah blah blah</code>...</p>
  
  <pre><code>    if($act=="ban"){
          $ban_until = $request-&gt;input('ban_until');
          if(Ragnarok::temporarilyBan($account_id,$banned_by,$ban_until,$ban_reason)){
              return $redirect()-&gt;to('banlist');
          }else{
              return $redirect()-&gt;to('banlist')-&gt;withErrors('Failed to ban, database error');
          }
      }else if($act=="unban"){
          if(Ragnarok::unBan($account_id,$banned_by,$ban_reason)){
              return $redirect()-&gt;to('banlist');
          }else{
              return $redirect()-&gt;to('banlist')-&gt;withErrors('Failed to unban, database error');
          }
      }
  </code></pre>
  
  <p>Anybody face this bug?</p>