Try to move away from static methods

[feketegy]

To be able to test the classes better and to avoid hard dependencies where's not necessary.

This would be a big task, at first it would be a good idea to refactor the most important parts, such as Request/Response, Route, etc.

[WinterSilence]

Differentiation of classes on static and dynamic: dynamic classes should not contain static methods and properties. "Factory" and "singletons" should be made ​​in separate classes.

http://forum.kohanaframework.org/discussion/comment/82313#Comment_82313