ACCUMULO-973 Remove trivial warnings about imports, and added missing hashCode() implementations for objects that override equals(), to be nice to users.
ACCUMULO-971 Fix some malformed javadoc return tags, and errors linking to hidden (protected) methods (I don't know why javadoc cares about these).


git-svn-id: https://svn.apache.org/repos/asf/accumulo/trunk@1434928 13f79535-47bb-0310-9956-ffa450edef68