reverse users in admin
remove not used stylesheets
remove unused js files
add answers checking
Merge branch 'feature/right_answer' into develop

* feature/right_answer:
  add answers checking
  remove unused js files
  remove not used stylesheets
  reverse users in admin
fix admin/answers/index
Merge branch 'release/1.3'

* release/1.3:
  fix admin/answers/index
  add answers checking
  remove unused js files
  remove not used stylesheets
  reverse users in admin