Removes setproctitle from dependencies

`setproctitle` won't compile on Mavericks, see https://pypi.python.org/pypi/setproctitle 
Removing this dependency, it was only used in a prototype, it hasn't been used in years.

Part of [OOIION-1492](https://jira.oceanobservatories.org/tasks/browse/OOIION-1492)