ZEN-6739 - ping time exceeds ping timeout parameter
ZEN-7020 : Unable to add services via UI.

Error: "The new service was added, but the system was unable to add it the list."

Reviewed by Joseph Hanson (for ZEN-7040).
Merge pull request #6 from zenoss/feature/zen6739

Feature/zen6739
Merge pull request #7 from zenoss/feature/zen7020

ZEN-7020
Use the RedisListPublisher.create() classmethod
Sync feature/perftool branch with develop