Merge pull request kubernetes-sigs#157 from Jefftree/default-logging

Set default logging to v4

Merge pull request kubernetes-sigs#150 from cheftako/test

Defaulted test client log level to 4.

Revert "Switch to klog v2"

This reverts commit e8fdaa8.

Revert "Switch to klog v2"

This reverts commit e8fdaa8.

Merge pull request kubernetes-sigs#139 from Jefftree/patch-3

Move metrics handler from admin to health server

Merge pull request kubernetes-sigs#131 from Jefftree/netproxy-fix-cli…

…ent-test

Test konnectivity-client in make test and fix tests