fglrx-driver 1:13.12-4~bpo70+1 cannot be installed

[Milan Kostić <smoki00790@gmail.com>]

https://lists.debian.org/debian-backports-changes/2014/02/msg00019.html

 This package depends on glx-alternative-fglrx (>= 0.4.1~), but latest
version in wheezy-backports is 0.4.0~bpo70+1

https://packages.debian.org/wheezy-backports/glx-alternative-fglrx