Revised MANIFEST.in to include options_default.json and the database...

Revised MANIFEST.in to include options_default.json and the database directory. Updated HISTORY.rst and bumped version.

Signed-off-by: Daniel Scheffler <danschef@gfz-potsdam.de>
3 jobs for v0.19.2 in 10 minutes and 23 seconds (queued for 20 minutes and 35 seconds)
latest
Status Job ID Name Coverage
  Test
passed #50917
test_gms_preprocessing

00:09:34

63.0%
passed #50918
test_styles

00:00:20

 
  Deploy
passed #50919
deploy_pypi

00:00:27