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.