[doc] fix errors in test_visibility_propagation example * forget to use the access instructions * wrong use of the function entity_from_eid * some indentation problems

version=3
opts=uversionmangle=s/(rc|a|b|c)/~$1/ \
http://pypi.debian.net/cubicweb/cubicweb-(.+)\.(?:zip|tgz|tbz|txz|(?:tar\.(?:gz|bz2|xz)))