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...
Change to:

"To make EasyBuild build and install WRF, including all of its dependencies, a **single command** is sufficient.

By using the `--robot`/`-r` command line option, we enable dependency resolution such that the entire software stack is handled::"