Adding support to hidden nodes
Merge branch 'develop' of https://github.com/XIMDEX/ximdex into develop
Fixing comments
Adding full schema.org ontology
Adding selectors to navigate over schema.org taxonomies
Merge branch 'develop' of github.com:XIMDEX/ximdex into feature/xtags-review

* 'develop' of github.com:XIMDEX/ximdex:
  Adding support to hidden nodes