fix activerel classname bug and travis

Fixes a dopey bug I introduced. This is why you write tests for everything. Also patches gemfile so Travis will run correctly, it was erroring out when it didn't specify the git repo. Is there a better solution to that?
For some reason, what was there before was causing Travis to error. See 610-613 at https://travis-ci.org/andreasronge/neo4j/builds. Was something else missing?