Move the source code underneath the gwt-parent project.  Let's see if that gets travis-ci working.
Merge pull request #41 from DavidWhitlock/gwt-subprojects

Move the source code underneath the gwt-parent project.
Merge pull request #42 from DavidWhitlock/java-7

I had a change from a year ago off on the java-7 branch. Time to get it merged into master.
Remove uses of the findbugs and cobertura plugins from the archetypes because those plugins don't work with Java 8.  See GitHub issues #43 and #44.
Add project info plugin configuration to make sure that we get the latest version (the one that works with Java 8 and Maven 3).
Update the versions of the plugins used by the airline-archetype so that we build cleanly with Java 8 (GitHub issue #28).
Merge pull request #45 from DavidWhitlock/update-plugins-in-archetypes

Partially address issues #28, #43, and #44 by removing or updating Maven reporting plugins in the archetypes.
Remove uninteresting comment that was actually wrong
Remove code that uses Java 7-specific syntax to address issue #48.
Merge pull request #49 from DavidWhitlock/java-6

Remove code that uses Java 7-specific syntax to address issue #48.
Merge in changes from master.  Undo the changes to require Java 6 and re-introduce some of the Java 7 examples.