ACCUMULO-1946 Note in the README about dfs.datanode.synconclose, with a slight amendment to hadoop version application.
Merge branch '1.4.5-SNAPSHOT' into 1.5.1-SNAPSHOT
Merge branch '1.5.1-SNAPSHOT' into 1.6.0-SNAPSHOT
ACCUMULO-1905 added documentation about hsync to tserver.mutation.queue.max
Merge branch '1.5.1-SNAPSHOT' into 1.6.0-SNAPSHOT
ACCUMULO-1905 increased tserver.mutation.queue.max default to 1M