Improved docstrings for makeLocalDataset
Added methods required for compatibility with ncIdv.jar 4.3.16.

Merely ported over methods "show" and "showCoords". [0]
Merge pull request #12 from jon4than/ncIdv.jar_4.3.16_compat

Added methods required for compatibility with ncIdv.jar 4.3.16.
Incoming swath coordinates might be fractional.  Use the the nearest
integral swath coordinates to generate the domainSet.  This maintains
a consistency with the geolocation.  This was a nasty little one because
the navigation error usually was less than a pixel, and just not
noticeable with high-res imagery.
Merge pull request #15 from tomrink/master

SwathAdapter: fractional to integral swath coordinates.
Fixed useNaN parameter in the mask formula [1351]
Merge pull request #16 from mhiley/master

Fix useNaN parameter in mask formula [1351]