carrierwave removed

not used any more
Fix link-creation for Ontologies.
Fix link_to calls for embedded logic views.
Merge pull request #329 from ontohub/correcting311_invalid_links_in_graph

Correcting311 invalid links in graph
Merge branch 'git' of github.com:ontohub/ontohub into git
Refactoring of git synchronization
Use Ontology::FILE_EXTENSIONS in Hets module.
Merge branch 'git' into develop