Merge branch 'master' of race.informatik.uni-hamburg.de:odsh/ckanext-odsh

ckanext/odsh/harvesters/ckan_mapper.py

ckanext/odsh/harvesters/config_stat_amt_nord.py

ckanext/odsh/harvesters/statistik-nord-example_2.json

ckanext/odsh/harvesters/statistiknordharvester.py

ckanext/odsh/harvesters/statistiknordharvester_old.py

ckanext/odsh/tests/result_data.json

ckanext/odsh/tests/test_ckan_mapper.py

ckanext/odsh/tests/test_data.json

requirements.txt