yiisoft/yii — pull request #891 by cebe (2012-06-29 15:33:36+00:00)
Title: added ILogFilter interface

Since `CLogFilter` is not a good base class for creating logfilters since it provides own implementation an interface `ILogFilter` is desired as of disussion in issue #684.

This PR adds the interface and changed `CLogFilter` to implement it.
Also fixed a few typos in Logger docblocks.