ACCUMULO-2224 link TODOs to new JIRAs
Merge branch '1.4.5-SNAPSHOT' into 1.5.1-SNAPSHOT
Merge branch '1.5.1-SNAPSHOT' into 1.6.0-SNAPSHOT
ACCUMULO-2154 Ignore NoNodeException while getting DeadServerList

Signed-off-by: Keith Turner <kturner@apache.org>
Merge branch '1.6.0-SNAPSHOT'