[dataimport, migration] more fixes in the spirit of a6c32edabc8d:
[entity, metadata] huuum, use resolvable url as cwuri... And fix existing ones.
Closes #3390388
option_group_changed('port', 'main', 'web')
option_group_changed('query-log-file', 'main', 'web')
option_group_changed('profile', 'main', 'web')
option_group_changed('max-post-length', 'main', 'web')