caosdb -> linkahead, at least for the crawler unit tests

src/caosadvancedtools/cache.py

src/caosadvancedtools/cfood.py

src/caosadvancedtools/crawler.py

src/caosadvancedtools/datamodel_problems.py

src/caosadvancedtools/guard.py

src/caosadvancedtools/serverside/generic_analysis.py

src/caosadvancedtools/serverside/helper.py

src/caosadvancedtools/utils.py