path names

Allow pathnames like application.log e.g when you configure CFileLogRoute

Like this:

array("class" => "system.core.log.CFileLogRoute", "levels" => "trace, info", "categories"=>"info,system.*","logPath" => "application.log"),

This was originally supported, but for consistency I removed it. The main reason is because you can easily do this with:



"logPath"=>Yii::getPathOfAlias('application.log'),


good/fair enough  :)