Merge pull request #92 from ramielrowe/master

Add Pympler to pip-requires
Added tenant_id in verification of instanceexists and instanceusages
Merge pull request #95 from anujm/F215

Added tenant_id in verification of instanceexists and instanceusages
moved ack to after save of raw
changed to only post process if successful
Merge pull request #97 from TMaddox/master

Changed to ACK after raw data is saved before continuing processing
added exit_on_exception configuration to worker
fixed bad exit arg for exit on exception
made exit_on_exception backward compatible
Merge pull request #98 from TMaddox/master

added exit on exception configuration option
log failed message and raise to kill worker
removed else in exit_or_sleep
Merge pull request #99 from TMaddox/master

Added message dump for failed message and raise to actually kill worker on failed message
Only process create.end on Success message