ACCUMULO-2586 Add in a deprecated RangeInputSplit to replace the 1.5.0 structure

RangeInputSplit doesn't need to be duplicative, but 1.5.0 had it as such, so
it should also be in all of 1.5
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
ACCUMULO-2606 Remove system-level packaging stuff

Removing RPM/DEB build tasks and maven profiles, related documentation,
and system-specific packaging resources and scripts, in order to defer such
things to downstream package maintainers.