ACCUMULO-2494 add commons-math to 1.6 tarball
ACCUMULO-2659 Properly deprecate public API changes to mapred utils
ACCUMULO-2171 Update CHANGES

  Include ACCUMULO-1486, ACCUMULO-2482, ACCUMULO-2659, ACCUMULO-2660
ACUMULO-2659 Replace some more methods for api's sake
ACCUMULO-2659 added MRE constructor back and deprecated it
Merge branch '1.5.2-SNAPSHOT' into 1.6.0-SNAPSHOT

Conflicts:
	core/src/main/java/org/apache/accumulo/core/client/mapred/InputFormatBase.java
	core/src/main/java/org/apache/accumulo/core/client/mapreduce/InputFormatBase.java
Merge branch '1.6.0-SNAPSHOT' of https://git-wip-us.apache.org/repos/asf/accumulo into 1.6.0-SNAPSHOT
ACCUMULO-2659 Fall back to the configuration when the iterator setting aren't in the split