#898990 by dereine: Fix bad SQL generated on related terms relationship if no vocabularies selected.

#941990 by master-of-magic: Link to node when using relationships could occasionally lose track and create bad links.

#847724 by dereine: Allow jump menu "Summary" style to customize choose text, just like the regular summary style.

#768060 by EmmanueleQuinto, xjm, others: Make sure that render alter options do not accidentally get blown up for empty fields.

#477984 by demeritcowboy, fatstar415, mike dodd, dagmar: Properly handle value for "empty" and "not empty" special operators.

#881468 by longwave: Improve performance by static caching results of argument validation because menu likes to double validate things.

#881680 by brianV and longwave: Avoid unnecessary invoking of view objects for argument validation when no argument validation is necessary.