Merge pull request #2 from fgeorgatos/develop

1st PR on develop branch for easybuild-docs
Merge pull request #3 from fgeorgatos/develop

few more docs
Merge pull request #4 from fgeorgatos/develop

Fixes for the reported sphinx errors
use Lmod v5.7.5
Merge pull request #6 from boegel/lmod_ver

use Lmod v5.7.5
Merge branch 'develop' of https://github.com/boegel/easybuild into develop
add robot dry-run example for WRF

Signed-off-by: Fotis Georgatos <fotis@cern.ch>