- bugfix for plotting mosaics with a single site, while specifying a specific scaling min/max for that site
- changed serialization of null values in ephemeris location data to be float NaN values instead of '!NULL' strings
- applied to location_geo, location_gsm, nbtrace, sbtrace
- not applied to metadata
- bugfix for ATM forward and inverse calculation functions for when an error occurs in the API
- added support for overplotting contours on CCD images
- added docstrings to ATM functions
- added support for TREx ATM forward and inverse calculations
- bugfix for grid file metadata readings
- added support for grid files
- bugfix to ephemeris search example
- addition of data access, reading, and analysis support functions