Updated version info and HISTORY.rst.

Signed-off-by: Daniel Scheffler <danschef@gfz-potsdam.de>
4 jobs for v0.15.8 in 34 minutes and 8 seconds (queued for 3 minutes and 3 seconds)
latest
Status Job ID Name Coverage
  Test
passed #46919
test_py_tools_ds

00:00:12

63.0%
passed #46920
test_styles

00:00:08

 
  Deploy Pypi
passed #46921
deploy_pypi

00:00:12

 
  Deploy Conda
passed #46922
deploy_anaconda

00:33:35