Доработка чата, css правки в login форме

Signed-off-by: 'kiyanov' <'kiyanov.alex@gmail.com'>
Merge branch 'master' of https://github.com/Jurets/smart_lp1

Conflicts:
	common/models/Participant.php
	frontend/controllers/OfficeController.php
	frontend/controllers/SiteController.php

Signed-off-by: 'kiyanov' <'kiyanov.alex@gmail.com'>