Added failing test for #2209
Merge branch 'master'
Revert "fixed configs"

This reverts commit c94131b875f81c71a6f2e5e63c5ef08ea47b51ad.
cs fix [skip ci]
Fixes #2209: When I18N message translation is missing source language is now used for formatting
fixed validation message translation [skip ci]
Added assignment back. See https://github.com/yiisoft/yii2/pull/2285#discussion_r9566711
Merge pull request #2285 from yiisoft/missing-translation-formatting

When translation is missing source language should be used for formatting
Changed csrf-var to csrf-param

Changed csrf-var to csrf-param due to meta validation error. The validation error as mentioned in the issue https://github.com/yiisoft/yii2/issues/2363. It is fixed in this pull request.
Update BaseHtml.php
Update Request.php
Update yii.js
Merge pull request #2374 from mintao/master

Some missing base unit tests
Update CHANGELOG.md
Update CHANGELOG.md
improved fixture command
Tidied up
gridview header/footer fix
Merge pull request #2384 from zelenin/gridview-header-fix

gridview header/footer fix
Merge pull request #2376 from dilip-vishwa/patch-2

Changed csrf-var to csrf-param