dgarijo/Widoco: WIDOCO 1.4.3: Bug Fixes and support for french

This release fixes the following issues: Added support for french (thanks to Maxime Lefrancois) When imported ontologies had characters like "<" they were not showing. Added JSON-LD serialization for ontologies automatically When annotation properties have blank nodes, they will now be ignored instead of failing Updated contributor list Blank nodes are now absent from the provenance page. Fixed default language when restarting WIDOCO. Fixed the language form (now french can be selected, and it has the proper icons