Merge pull request #34 from thehyve/features/SESIDEV-75-variable-taxonomy-association

Added a feature to store an association between variable and taxonomy
Merge branch 'master' of https://github.com/thehyve/sesi_site
Merge branch 'master' of https://github.com/thehyve/sesi_site
Merge branch 'master' of https://github.com/thehyve/sesi_site
Merge branch 'master' of https://github.com/thehyve/sesi_site
Merge branch 'master' of https://github.com/thehyve/sesi_site
Rearranged module activations.
Save CMI costumized homepage content.
Merge branch 'master' of https://github.com/thehyve/sesi_site
Merge branch 'master' into feature/data_access_form
Removed duplicated codes.
To prevent hiding og-group-ref field in other places other than register form.
Merge branch 'master' of https://github.com/thehyve/sesi_site
Merge branch 'master' of https://github.com/thehyve/sesi_site
Merge branch 'master' of https://github.com/thehyve/sesi_site
Merge branch 'master' into feature/data_access_form
Merge branch 'master' of https://github.com/thehyve/sesi_site
Merge branch 'master' of https://github.com/thehyve/sesi_site
Merge branch 'master' into feature/data_access_form
Merge branch 'master' of https://github.com/thehyve/sesi_site