IMPLEMENTING - issue GDP-598: RFC Real Time Archive Builder 
https://internal.cida.usgs.gov/jira/browse/GDP-598

Aggregator no longer moves source files; instead, separate "publish"
program moves aggregated NetCDF file to published archive directory and
moves source GRID files to safe place.

Aggregator no longer fetches the first hour of the next month; instead,
last hour of subject month is used as upper bound.

More command-line options.