Fix auth.war based on recent spring config changes

Resolves: https://www.pivotaltracker.com/story/show/72650332
Merge pull request #407 from awoods/fcrepo-4.0.0-beta-01-RC

Fix auth.war based on recent spring config changes
[maven-release-plugin] prepare release fcrepo-4.0.0-beta-01
[maven-release-plugin] prepare for next development iteration