Added ability to read model input data from netCDF files
Supressed useless warning messages form udunits2
Removed debug lines
Changed Continuous Grid type from DBFloat4 to DBFloat, Datastreams of Type Double were getting cast as float when the datastream was stored to rgis
Updated Netcdf import to handle float and double types
Fixed XXXX handling
Merge https://github.com/gyelnats/RGIS
Bringing over Stanley's changes.
Preparing to make NetCDF the native file format.