Nth PR on develop branch for easybuild-docs, for N=6


Hi @boegel, @stdweird,

I think the new structure is better visible at this point; can you validate?
Best way to visualise it is this one: http://easybuild-docs.readthedocs.org/en/develop/
However, giving the feedback in github style over here would help it advance faster, I guess...
trim trim trim

```
$ eb HPCG-2.1-goolf-1.4.10.eb GCC-4.8.3.eb
[...]
== HPCG/2.1-goolf-1.4.10 is already installed (module found), skipping
[...]
== building and installing GCC/4.8.3...
[...]
== Build succeeded for 1 out of 1
[...]
```