add handler property to yii\web\Session
simpler implementation of the handler property in yii\web\Session
Changed elasticsearch AR primary key handling

now supports mapped primary key when _id is part of source with an
alias.
Fixed label attributes in BaseHtml
fix when $_SERVER['HTTPS'] is "ON"

when $_SERVER['HTTPS'] is "ON" it doesn't work well
Merge pull request #1800 from ginus/patch-1

fix when $_SERVER['HTTPS'] is "ON"
Fixed code style and comparison
fixes #1796
Merge pull request #1798 from zhuravljov/patch-1

Fixed label attributes in BaseHtml
Changelog update
fixed getSecureConnection after #1800

and 7ba6a06300f150bbd2818afb01070203a6ce0549
fixes #1803.
Merge pull request #1757 from nineinchnick/1476_session_handler

Add handler property to yii\web\Session
Added --prefer-dist to all docs

1. It results in much smaller download and takes less disk space (25MB instead of 180MB for yii-basic + dependencies).
2. It requires less utilities to be installed (no VCS binaries required).
3. It takes less time to install dependencies.
Fixed URL parsing so it's now properly giving 404 for URLs like `http://example.com//////site/about`
doc fixes.
added laravel like touch() method to AutoTimestamp
fixed typo
Fixes #1791: support ON condition for relational query.
fixes #1811