ACCUMULO-2183 Look for the thrift SecurityErrorCode since this is coming from the ThriftSecurityException.
ACCUMULO-2234 Fix up formatting for madrob.
ACCUMULO-2235 Fix up formatter for madrob and make the du test a little less sensitive to other tests
Merge branch '1.4.5-SNAPSHOT' into 1.5.1-SNAPSHOT

Conflicts:
	src/core/src/main/java/org/apache/accumulo/core/client/mapreduce/InputFormatBase.java
	test/src/main/java/org/apache/accumulo/test/continuous/ContinuousVerify.java
Merge branch '1.5.1-SNAPSHOT' into 1.6.0-SNAPSHOT

Conflicts:
	core/src/main/java/org/apache/accumulo/core/client/mapreduce/RangeInputSplit.java
	core/src/main/java/org/apache/accumulo/core/util/shell/commands/DUCommand.java
	test/src/main/java/org/apache/accumulo/test/continuous/ContinuousVerify.java
	test/src/test/java/org/apache/accumulo/test/ShellServerIT.java