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: there's still a typo in here, it should be:

```python
configopts = "--enable-libnuma=$EBROOTLIBNUMACTL"
```

I'll test this out ASAP, and also tackle the `intel` toolchain.