ru "русский язык" translation #5597. Author: Anonymous. the translation is great, I just deleted an unnecessary comma. thank you
sw "Kiswahili" translation #5601. Author: Mangi.
nb "Norsk bokmål" translation #5602. Author: Mangi.
fix user collection
upgrade reactivemongo and fix games winner ID
Merge branch 'master' into glicko

* master:
  upgrade reactivemongo and fix games winner ID
  fix user collection
  nb "Norsk bokmål" translation #5602. Author: Mangi.
  sw "Kiswahili" translation #5601. Author: Mangi.
  ru "русский язык" translation #5597. Author: Anonymous. the translation is great, I just deleted an unnecessary comma. thank you

Conflicts:
	todo
glicko2 migration WIP
convert all site to glicko ratings