Work in progress...

I created two profiles, one to overlay the configuration for XACML and another to overlay the configuration for rbacl.  I don't have the configurations there yet.  This PR is just to pass along my work and my thinking to the individual who looks at this next.

Open questions:
1.  Is the build getting all the required 3rd party libraries for the two projects
2.  Is there a reason this is a better approach than having the two project each build thier own war files for deployment? (possibly this serves as an easy configuration point?)
3.  Is there any way to inherit some of the build procedures from fcrepo-webapp (ie, one-click install)
4.  Is there a reasonable way to reuse the integration tests for the two fcrepo-module-auth-* projects?