ACCUMULO-1104, ACCUMULO-1093, ACCUMULO-1094, ACCUMULO-1095, ACCUMULO-1099, ACCUMULO-1097, ACCUMULO-1102 - Improve documentation

git-svn-id: https://svn.apache.org/repos/asf/accumulo/branches/1.5@1450543 13f79535-47bb-0310-9956-ffa450edef68