Removed servlet-api dependency as it's inherited from Restolino.
Updated manually-updated taxonomy Json.
Merge branch 'master' of github.com:ONSdigital/tredegar
Merge branch 'master' of github.com:ONSdigital/tredegar
Added a background validation process to check that all Json files can
be parsed. This should give us a heads-up if any manually-edited files
are broken.