* upstream/master:
gridview and listview use widget ID in base tag
typo fix [skip ci]
Update CHANGELOG.md
made elasticsearch error messages more readable
Spanish structure-views [skip ci]
Fix filename
Update README.md
https://github.com/yiisoft/yii2/pull/4091#discussion_r14296860
Fix possibility of non-removed symlinked directory.
Fixed typo. [skip ci]
changed default for rotateByCopy of FileTarget
