Tightened code styling rules in Checkstyle config

New checkstyle rules added and indentation check suppressed for Java files.  This shouldn't be merged until the work for https://www.pivotaltracker.com/story/show/71267176 is ready to be done.

Work done for https://www.pivotaltracker.com/story/show/70648784

Tickets generated from this:
* https://www.pivotaltracker.com/story/show/71262298 (Update Eclipse/IntelliJ config files -- can IntelliJ import Eclipse's so there is only one to maintain?)
* https://www.pivotaltracker.com/story/show/71266786 (Update documentation for fcrepo checkstyle and eclipse configs -- on Confluence and fcrepo Eclipse config files' README.md)
* https://www.pivotaltracker.com/story/show/71267176 (Run new rules across existing code base and clean up)