add flags sprite and CSS
Merge branch 'master' into flags

* master:
  ok to leave the page if game is not started
increment assets version
fix user autocompletion
list of all countries by ISO-3166-2 code
user configurable profile wip
Merge branch 'master' into profile

* master:
  de "Deutsch" translation #4847. Author: Kurt Keller (Ulm, Germany). http://www.softdecc.com/pdb/search.jsp?expression=PROBID=%27P1276285%27
  fix clocks running after resignation
  fix user autocompletion
complete user profile