"/run/media/$USER" folder for cdrom

Adding support for Linux distributions that mount CD in the "/run/media/$USER" folder

these Linux distributions are concerned:
- Fedora
- Manjaro (I think)

There is probably more  (Arch Linux?)


![capture d ecran de 2014-09-05 08 37 08](https://cloud.githubusercontent.com/assets/4596884/4160978/236e2e68-34c7-11e4-9db3-437a2e3398e9.png)