The foss/2014b toolchain

This is the VSC foss 2014b toolchain. The foss toolchain should be added to easybuild in order to test these configs.
@hajgato: ok, this is my fault. The correct value being passed should of course be `$EBROOTNUMACTL` (it's always `$EBROOTX` with X being the uppercase software name). Then you can also drop the `#numactl` comment