Fixes #6969: `yii\helpers\ArrayHelper::htmlEncode()` and `htmlDecode()` should not remove non-string data

fixes #6896

close #6913

fixes #6936

Translated messages in [[i18n\Formatter.php]]

Fixes #6661: Hyperlinks that are enclosed within an exist form will use the same form for submission if they specify both of the `href` and `data-method` attributes

TimeStampBehavior PHPDoc update for the `touch()` method

Fixes #5663 and #5671: Added support for using `data-params` to specify additional form data to be submitted via the `data-method` approach

fixes #yiisoft/yii#3712

- Made yii\web\Request::getQueryParam() and getBodyParam()'s doc blocks more consistent with each other
- getQueryParam() was incorrectly stating that if $name was omitted, all of $_GET would be returned (but $name is required)

Fixes #6697: Added `yii\helpers\Url::current()` method that allows adding or removing parameters from current URL

Fixes #5690: adjusted paths in message config generated by `yii message/config` to reflect directory structure better

Add mimeTypes Arabic validation message

ensure PDO instance has been created at this point

formatting date and time values for years >=2038 or <=1901 is now possible also with intl extension is
installed. 32bit systems will fall back to the PHP implementation because intl uses a 32bit UNIX timestamp internally.
On a 64bit system the intl formatter is used in all cases if installed.

fixes #5577

Added content to give a clear example to those that don't intuitively know how to set the template property using array notation.

close #6811

fixes #6748

allows using logger without a Yii application now.

close #6739

close #6779