ACCUMULO-1337 patch from Pushpinder Heer to add WholeColumnFamilyIterator

git-svn-id: https://svn.apache.org/repos/asf/accumulo/trunk@1479924 13f79535-47bb-0310-9956-ffa450edef68
ACCUMULO-1358 Appled patch from Mike Drob, with modification to delete table in unit test.

git-svn-id: https://svn.apache.org/repos/asf/accumulo/trunk@1479946 13f79535-47bb-0310-9956-ffa450edef68