Conflicts:
	yii/db/Connection.php

Fix issue #209 default timezone

better have timezone fix in application

[WIP] Gettext support

app is resposible for setting time zone, so it should also do the
fixing.
+ documentation about the behavior.
issue #210 and #209

RBAC sql files a little identation fix

RBAC sql files

Suggest \yii\rbac\DbManager some Db fields renaming

[WIP] Auth manager

set application timezone early in application constructor, set default of UTC if no timezone is configured at all (not in app config nor in php.ini)