Fixes #4829: Removed `PARSING_ONLY` from `\yii\rest\UrlRule` to allow creating non-GET URLs for forms and tests

- If exception is internal it's always returned as HTTP 500 general purpose one.
- Type isn't exposed anymore.

fix bugs of BlameableBehavior in console application. In console application, \yii\console\Application doesn't have `getUser()` method. Use BlameableBehavior in console application will cause an exception.

`yii\base\ErrorHandler::handleError()` adjusted keeping native error processing on error reporting miss match.

exclude parts that have different default values