generate users views with bootstrap
add views
Merge branch 'feature/add_users_views' into develop

* feature/add_users_views:
  add views
  generate users views with bootstrap
Merge branch 'develop' of github.com:JanaVPetrova/master_hunter into develop

* 'develop' of github.com:JanaVPetrova/master_hunter:
  add unique index for user email