Added `forceDownload` parameter to `yii\web\Response::xSendFile()`
`yii\base\ErrorHandler::handleError()` adjusted keeping native error processing on error reporting miss match.
Added error logging at `yii\caching\FileCache::gcRecursive()`
Added 'caseless' option to `yii\helpers\BaseFileHelper::findFiles()`
Merge pull request #4750 from klimov-paul/3459-file-cache

Enh #3459 : Added logging of errors, which may occur at `yii\caching\FileCache::gc()`
`options` parameter extracted at `yii\web\Response::xSendFile()`
Merge pull request #4748 from klimov-paul/4424-x-send-file

Enh #4424: Added `forceDownload` parameter to `yii\web\Response::xSendFile()`
Convert 'caseless' option into 'caseSensitive' option at `yii\helpers\BaseFileHelper::findFiles()`
Merge pull request #4752 from klimov-paul/4062-find-files-case-sensative

Enh #4062 : Added 'caseless' option to `yii\helpers\BaseFileHelper::findFiles()`
Fixes #4757: fixed paths in advanced app init
Renamed YII_ROOT_DIR → YII_APP_BASE_PATH
link fix
Merge pull request #4765 from sklyukin/patch-1

link fix