#490516 by v_20q: Some fields not properly being marked as translatable due to option unpacking bug.

Table sort "do not override" was putting its sort criteria first but that still counts as overriding.

#468824 by eaton: Pluggable caching mechanism which can cache both the query result and rendered result.

#428742 by fralenuvol: Fix broken relationship causing sql error with multiple taxonomy term arguments.

#380560: UI could suddenly cause errors with get_handlers() in certain situations with relationships.