Custom Search - Search by Date Added is broken in 3.2 AND should ignore group membership if no Include or Exclude groups are selected in search criteria

Find Contacts by Date Added search was broken in 3.2 (due to changes in date selector behavior).

Also, search behavior for situation where we're looking for contacts by date added REGARDLESS OR GROUP was not working as expected. If you did not select any groups for either Include or Exclude groups, the search was still only finding contacts that were in SOME group - and ignoring contacts who weren't in any group. I've modified the code to ignore group "membership" if no groups are selected in either multi-select input field.