#969586 Completely refactor the form processing so previews work in overlay. Did a bunch of cleanup in the process, other things may have broken, this will need some shaking out.

#969612 Fix missing join node message by removing unneeded field addition in date filter. That is a relic of the way D6 worked, shouldn't be needed any more.

Add validation back now that things are working again because validators are needed to set some views values.

#970614 by Mark Trapp Fix month abbr functions broken when switching from date_t() to new translate context system.

#969344 by DamienMcKenna fix broken code to create 'now' for filter. Also add back validation on the filter form and work on views relationship handling.

#963844 Fix the date filter and argument so they will show up both under the 'Date' group and as 'Content' fields. Also a few tweaks to Date Wizard.

Trying to figure out how to get the list of date fields back into the date argument and filter. Something must have changed.