added assertion that configuration key was loaded.
added assertion that configuration key was loaded.

collectdbit/verzamelend,steenzout/verzamelend,steenzout/verzamelend,steenzout/flx,steenzout/python-primogen,collectdbit/verzamelend,steenzout/flx,steenzout/python-kerfi-vangasvipur,steenzout/python-sphinx,steenzout/python-kerfi-vangasvipur