Revert "chore(package): update react-router to version 4.0.0"
Revert "chore(package): update react-router to version 4.0.0"

This reverts commit 41b333cc65152f19263725cd15d9f70a53474753.

r3dDoX/geekplanet,r3dDoX/geekplanet,r3dDoX/geekplanet