Merge branch 'allow_grouped_identifiables' into 'master'

...ications/Theses/2019_paper_on_exciting_stuff/usefull.xlsx

...ications/Theses/2019_paper_on_exciting_stuff/useless.xlsx

...t/extroot/SimulationData/TestProject/2019-02-03/README.md

...test/extroot/SimulationData/TestProject/2019-02-03/sim.py

...troot/SimulationData/TestProject/2019-02-03/snapshots.dat

...SimulationData/TestProject/2019-02-03_something/README.md

...ulationData/TestProject/2019-02-03_something/large_sim.py

...ulationData/TestProject/2019-02-03_something/parameters.p

...ationData/TestProject/2019-02-03_something/timeseries.npy

integrationtests/full_test/filldb.sh

integrationtests/full_test/insert_model.py

integrationtests/full_test/insert_record.py

integrationtests/full_test/model.yml

integrationtests/full_test/test.sh

integrationtests/full_test/test_crawler.py

integrationtests/single_tests/test_cfood.py

integrationtests/single_tests/test_crawler.py

src/caosadvancedtools/cache.py

src/caosadvancedtools/cfood.py

src/caosadvancedtools/crawler.py