using DataSet to define a date range of input directories

[Tim Chan]

I would like to be able to specify a date range and have oozie feed that as
a list of input directories for my workflow.

For example, my input data is stored in this fashion:

mydata/${YEAR}/${MONTH}/${DAY}

I would like to specify date ranges that aren't whole months, for example:

Jan 13 - Feb 3.