Merge branch 'develop' into 'master'

.gitlab-ci.yml

AUTHORS.md

README.md

RELEASE_NOTES.txt

doc/MISC.md

doc/comparison_otb.md

doc/examples/nodata_mean.md

doc/examples/pleiades.md

doc/extra.css

doc/features.md

doc/functions.md

doc/index.md

doc/installation.md

doc/interaction.md

doc/managing_loggers.md

doc/otb_versions.md

doc/quickstart.md

doc/stylesheets/extra.css

doc/summarize.md

doc/troubleshooting.md