Introduce a new GWT parent project so that it can remain on Java 7.
All GWT projects now have the GWT parent project as a parent.
Don't need to declare GWT version globally.
Compile with Java 8 language level.
Hudson isn't happy with GWT projects at the top level.  Try removing familygwt to see what happens.
Merge branches 'java-8' and 'master' of github.com:DavidWhitlock/PortlandStateJava into java-8
Use Java 8 when building with travis-ci.
Merge pull request #37 from DavidWhitlock/java-8

Use Java 8 to compile non-GWT code.