Normalize the id of meta_keys

Normalize the id of meta_keys

Replaced find_by_label by find_by_id for meta_key

Replaced find_by_label by find_by_id in spec/factories/features

wip label => id

more label refactoring

wip

wip

wip

specs should be green

wip

replaced meta_key_name with meta_key_id

wip

fix feature ?