cosmetic changes
validate date of 14 to 20 year age
add yandex and google analytics
fix factories of user: add 18 age date
Merge branch 'hotfix/change_competition' into develop

* hotfix/change_competition:
  to works unavailable
  edit competition
Merge branch 'develop' of github.com:ulmic/i_am_the_lider into develop

* 'develop' of github.com:ulmic/i_am_the_lider:
  fix factories of user: add 18 age date
  add yandex and google analytics
  validate date of 14 to 20 year age
  cosmetic changes
Merge branch 'develop'

* develop:
  fix factories of user: add 18 age date
  add yandex and google analytics
  validate date of 14 to 20 year age
  cosmetic changes