Merge branch 'f-email-notify' into 'dev'

CHANGELOG.md

crawler_run_model.yml

integrationtests/test_use_case_simple_presentation.py

src/caoscrawler/config.py

src/caoscrawler/crawl.py

src/caoscrawler/logging.py

src/doc/getting_started/index.rst

src/doc/getting_started/optionalfeatures.rst

unittests/test_tool.py