v4.2.9 (30 Nov 2017)
- Replaced freeunit() by getlun()
- Added standard_name and axis attributes when writing lat/lon grids
- Added valid_min, valid_max, grid_step attributes to output grids. Removed actual_range.
- Many changes to the developer code to produce the Nov 2017 updates; see there for more information.
- Changes to configuration file (rads.xml) in accordance with the Nov 2017 updates.