Configure maven-release-plugin to only prompt once for the release version.

git-svn-id: https://svn.apache.org/repos/asf/creadur/rat/trunk@1622905 13f79535-47bb-0310-9956-ffa450edef68
[RAT-170] RAT should use itself during build and site generation
- Move the Rat execution from a profile and into the normal build. This way Rat is always run when we build Rat, so that we can detect problems early.

git-svn-id: https://svn.apache.org/repos/asf/creadur/rat/trunk@1622908 13f79535-47bb-0310-9956-ffa450edef68