refs #2716 - changed aliases for all taxonomies
added module taxonomy_manager refs #2724
Merge pull request #122 from EU-OSHA/2724_taxonomy_manager

added module taxonomy_manager refs #2724
Merge pull request #120 from eugenst/2716_aliases

refs #2716 - changed aliases for all taxonomies
Merge branch 'develop' of http://github.com/eu-osha/osha-website into develop