Merge pull request #344 from thriuin/master

Template fix to handle variable scope in Jinja2 for datasets with apps.
Merge pull request #345 from thriuin/master

	Add more French translations for Dataset history page
Merge pull request #346 from thriuin/master

Updating the links in the WET footer for the Registry
remove build_schema dir, schema.json now official source of schema
Merge pull request #347 from wardi/master

remove build_schema dir, schema.json now official source of schema