Bump play-slick version in Play example
Bump play-slick version in Play example

This will pull in Slick version 3.0.1, which contains a fix for the
custom Postgres driver failing to load when running Play in dev mode.

vikraman/slick-pg,tminglei/slick-pg,TimothyKlim/slick-pg,enragedginger/slick-pg