Revert "Added MySQL dependency in pip-requires"

This reverts commit 15b8ac9d22325440cbd22e952c0ecf127e9bc2ee.
Merge pull request #150 from ameade/remove-mysql

Revert "Added MySQL dependency in pip-requires"
Merge pull request #161 from isethi/oslo-config

Update files to use oslo.config
Notification for qonos.job.create