Fixes to make it work.

A few small changes required:
1) The service config got tweaked a little, notice the service prefix has the '/' suffix now along with the other small changes for testing.  The erlang application name needed to change to match the module name, as elixir creates it, which is "Elixir.CloudiServiceTmpo".  Need to use ' quote to keep it as an atom, since " interprets it as a filename.
2) :cloudi_logger_interface.warn/4 is required due to elixir not supporting erlang macros, it is a little bit large, but there doesn't seem to be a better way.