Update to RAT 0.10 which does not kill with performance like 0.9 did
targetting 3.2.0 release
[MNG-5558] JVM used to run Maven must now be Java 1.6 or newer - can still compile and run tests with older JVMs via toolchains
due to the plugins that we use, you need maven 2.2.1+ to build maven 3.2.x, so let's record that fact
add detail on when we can remove the explicit rat version
[MNG-5558] JVM used to run Maven must now be Java 1.6 or newer - can still compile and run tests with older JVMs via toolchains