ACCUMULO-121 improved the bulk ingest documentation; double-checked the example

git-svn-id: https://svn.apache.org/repos/asf/accumulo/branches/1.5@1480270 13f79535-47bb-0310-9956-ffa450edef68
ACCUMULO-121 improved the bulk ingest documentation; double-checked the example

git-svn-id: https://svn.apache.org/repos/asf/accumulo/trunk@1480271 13f79535-47bb-0310-9956-ffa450edef68