refactor criteria to query style
fix missing language info for no result
add language to info if list has no result
add language to no-result info in link_list

• fix correct display name of language by using field_name
• add missing strings
fix without-criteria (never worked before)

• refactor criteria to query syntax
renamed all Criteria objects to Query

• to make it easier for further refactoring to Propel 2.0
• remove old comment