v7.0.0

Feature

• Remove category filter (b9126f0)
• Add document title and description to search (71fd43f)
• Search utility (e96aff8)
• Add "only_newest" filter for files (2b42cb9)
• Implement improved fulltext search (99a0078)
• Move thumbnail generation to celery (6d30dcd)

Fix

• Clone files with s3 copy (f191fae)
• Update DGAP (c2c357b)
• Revalidate mimetypes after moving document to different category (46066ac)
• Remove version from errors (e39470f)
• Stricter mime type handling (4b8ab5b)

Breaking

• remove category filter (b9126f0)
• This changes the structure and type of the search endpoint's data. (99a0078)