FIX: Relation names not mangled in \yii\db\ActiveQuery::normalizeRelations
Merge pull request #1171 from mcd-php/fix-relation-strtolower

FIX: Relation names not mangled in ActiveQuery::normalizeRelation
More precise descripton fo Session::cookieParam
Merge pull request #1172 from egorpromo/descript-for-sessionParam2

More precise descripton fo Session::cookieParam
Changed important log messages to info level
Added log messages to user login and logout actions.
Fixes #1176.
Refactored Session as suggested in #1172
Fixed phpDocs [skip ci]
Fixed the rest phpDocs [skip ci]
Removed links to non-existent things phpDocs [skip ci]
Update main.php
Merge pull request #1177 from nukkumatti/master

Fixed phpDocs [skip ci]
Merge pull request #1178 from slavcodev/patch-1

Update main.php
Fix phpDoc var tag format
Fix apps phpDoc and short tags
Merge pull request #1180 from slavcodev/code-style

Code style