Switch event testing back to Unix domain socket, check event for nil before type asserting
Merge pull request #12 from zenoss/feature/fixpanic06232014

Switch event testing back to Unix domain socket, check event for nil before type asserting
Check for nil before type asserting in another place
Merge pull request #13 from zenoss/feature/fixpanic06232014

Check for nil before type asserting in another place
Merge pull request #14 from zenoss/develop

merge