Persist does not output good error messages when presto table creations fail

[jessie-morris]

When defining a persist event, if i do something which causes the table to be unable to be created such as put a hyphen in the table name, I get a error which is something along the lines of process no longer alive instead of an error message telling me what went wrong.

We should get a more obvious error message in this case and when the event is reposted, this should bee able to resolve the problem without putting the system in a bad state.