[#473] related_list should return Query if neither an id nor a name are provided
[#473] Validate parameters for current_package_list_with_resources
[#473] Add offset to current_package_list_with_resources and mark page deprecated
[#473] Unify validation for autocompletion
[#473] Refactor get_or_bust, we do not have to give validate a fake context
[#473] Validate package_search parameters against a schema