[R] ZonedIO → DataView

There is also a variation on this that says there are two hard
things in computer science: cache invalidation, *naming things*,
and off-by-one errors ...
OutOfBounds:: +constructor with just a string arg

Refactor it so we use the parent's class (out_of_range) what()
function instead of providing our own.
DataView: use OutOfBounds ctor with single string
Merge pull request #413 from gicmo/dataview

ZonedIO → DataView