"yii\sphinx\Schema' reworked to drop inheritance from "yii\db".

fixes #1161

Proposal for #31: email component based on SwiftMailer

Proposal for accessing populated relations

[ci skip]

Method 'yii\mail\MailerInterface::compose()' reworked allowing rendering message body.

Modified application templates so when trying to log in when already logged in it just redirects to homepage instead of throwing exceptions