Revert "pass all not written routes to NotFound handler"

This reverts commit d68dc967526f945e250e2d1e6c337648374dc4db.
Revert ""fix" router tests"

This reverts commit 4cbd720ebdc53d0852fb822ed21fa8d0ba40c959.
Merge pull request #249 from go-martini/JMS-Revert-246

Reverting changes from #246