ACCUMULO-1687 update RegEx example; fix some other typos and hard-to-understand instructions
Merge branch 'master' of https://git-wip-us.apache.org/repos/asf/accumulo
ACCUMULO-1345 log warning and stack trace when compaction does not make progress
ACCUMULO-1696 fixed compaction debug counts for deep copies
ACCUMULO-1674 Cleanup M/R config with AuthenticationToken serialization