Added Polish translation
Renamed SiteController to DefaultController
Merge remote-tracking branch 'origin/master' into Twig

Conflicts:
	web/themes/bootstrap/views/bans/_search.php
	web/themes/bootstrap/views/default/account.php
	web/themes/bootstrap/views/default/appeal.php
	web/themes/bootstrap/views/default/bans.php
	web/themes/bootstrap/views/default/dashboard.php
	web/themes/bootstrap/views/default/error.php
	web/themes/bootstrap/views/default/login.php
	web/themes/bootstrap/views/default/lostpassword.php
	web/themes/bootstrap/views/default/report.php
	web/themes/bootstrap/views/default/servers.php
	web/themes/bootstrap/views/layouts/main.php
	web/themes/bootstrap/views/settings/_form.php