Alex Lin 1454236a81 Use udunits package for units conversions
Created a check in the configure script looking for the udunits header
files.  Also added a sim to test some of the new units capabilities.

refs #231
2016-05-09 16:40:48 -05:00
..
2016-01-12 16:39:47 -06:00
2015-06-09 08:44:42 -05:00