Adjusted search model code generated by Gii CRUD generator
Fixes #2931.
Tiny Change - Typo 

Second Example should start with ProgressBar::begin not ProgressBar::widget
Merge pull request #2933 from muyiwaolurin/patch-1

Tiny Change - Typo
Fixes #2932: Added `yii\web\ViewAction` that allow you to render views based on GET parameter
Fixes #2937
Renamed basePath to viewPrefix
Dropped defaultView
New truncate and truncateWords methods

New truncate and truncateWords methods, https://github.com/yiisoft/yii2/issues/2941
Extracted render method to allow custom renderers by subclassing
Proper language name is `kk`, not `kz` as it was before

See this for more details: https://github.com/yiisoft/yii/pull/3300
Update BaseStringHelper.php

Length check.
Update CHANGELOG.md
Update BaseStringHelper.php

Updated to use mb_* functions
Removed ViewAction::afterRun()
Merge pull request #2934 from yiisoft/action-for-static-pages

Fixes #2932: Added `yii\web\ViewAction` that allow you to render views based on GET parameter
Refactored ViewAction.
#2936: New favicon for applications
Merge pull request #2951 from yiisoft/action-for-static-pages

#2936: New favicon for applications
Add Vietnamese into messages.