ArcBees/GWTP — pull request #473 by olafleur (2014-04-17 18:01:25+00:00)
Title: Move to Java 7 and diamond operator in carstore

Since GWT 2.6 now has Java 7 as a default, we can now switch to Java 7, as suggested in #229 .
Also, I applied the diamond operator in the carstore.