Download pdf in collection view
Merge branch 'trunk' of https://github.com/voer-platform/vpw

# By quangthe2104 (5) and Luong Trieu (1)
# Via quangthe2104 (2) and Luong Trieu (1)
* 'trunk' of https://github.com/voer-platform/vpw:
  unpublish material
  add urls
  add urls.py
  add style.css
  update js uncheck
  Update

Conflicts:
	static/css/style.css
Fix style
Merge branch 'trunk' of https://github.com/voer-platform/vpw

# By Luong Trieu
# Via Luong Trieu
* 'trunk' of https://github.com/voer-platform/vpw:
  update link avatar user