ACCUMULO-1421 fix warnings introduced by previous commits

git-svn-id: https://svn.apache.org/repos/asf/accumulo/branches/1.5@1483435 13f79535-47bb-0310-9956-ffa450edef68
ACCUMULO-904 updated some documentation in the property descriptions, and adjusted line lenths to make the formatter a bit happier. Further efforts to improve configuration and configuration documentation will require more specific tickets.

git-svn-id: https://svn.apache.org/repos/asf/accumulo/branches/1.5@1483444 13f79535-47bb-0310-9956-ffa450edef68
ACCUMULO-1421, ACCUMULO-904 merge to trunk

git-svn-id: https://svn.apache.org/repos/asf/accumulo/trunk@1483461 13f79535-47bb-0310-9956-ffa450edef68