Resolve "negative center lat/lons (meso) confuse the parser"

Closes #22

See merge request !19

small buildbucket fixes

See merge request !22

Resolve "look into GOES-18 support"

Closes #37

See merge request !20

Change the realtime flag from -1 to -r. This will allow argparse to parse negative values without extra handholding.

swap miniconda for mambaforge & mamba

See merge request !18

More updates to README for v1b1

See merge request !17

Minor changes to caveats in README for v1b1

See merge request !16

Ignore warnings for now. They're likely to confuse users. (#23)

See merge request !15

This could be improved by only ignoring warnings in "released" versions so that we still see them when developing.

1.0b1rc2 fixups

Closes #27

See merge request !13

Updated README for rc3

See merge request !14

new satpy version to fix #27 - error when gridded file prefix is > 2 characters and tiles are generated

attempted fix for the 20s end times issue. we might need to revisit and be more explicit in order to handle bad input as well.

Resolve "filename prefix change"

Closes #4

See merge request !12

update satpy hash to post-https://github.com/pytroll/satpy/pull/1548, with support for modifying the environment prefix