ACCUMULO-2648 Make AccumuloInputFormat use correct RangeInputSplit
ACCUMULO-2551 Fix type safety and import warnings.
Merge branch '1.5.2-SNAPSHOT' into 1.6.0-SNAPSHOT

Conflicts:
	core/src/main/java/org/apache/accumulo/core/client/mapreduce/InputFormatBase.java
	core/src/test/java/org/apache/accumulo/core/client/mapreduce/EmptySplitsAccumuloInputFormat.java
	server/master/src/main/java/org/apache/accumulo/master/util/FateAdmin.java
ACCUMULO-1487 Fix build command in build.sh convenience script