Broken TRAFFIC_LEFT_PATTERN in RapidfileshareNet and TusfilesNet accounts.

After the latest commits, remainig traffic is not read correctly anymore in RapidfileshareNet and TusfilesNet accounts; see below screenshot:
![schermata del 2014-10-22 18 47 17](https://cloud.githubusercontent.com/assets/7717069/4742474/4dccfe46-5a1f-11e4-9b9d-c1a80128e044.png)
The proposed changes fix the problem:
![schermata del 2014-10-22 20 44 26](https://cloud.githubusercontent.com/assets/7717069/4742497/7d119b8a-5a1f-11e4-8b63-cb3c89ace998.png)