Search Builder: Allow Different Record Types in Separate Criteria Sets (clauses) and Fix Operator Display in QILL

Currently if you try to search on Individual fields in the 1st criteria set and Household (or Org) fields in the next set - you get this error:

"Cannot have two clauses with different types: Individual, Household"

While it makes sense to not allow mixing record types WITHIN a clause (criteria set) - since the result would always be NULL - we should allow different clauses (which are OR'd together) to use different record types. We support this in Advanced Search.

So for example, I should be able to find Individuals (first clause) in California, also (OR) Organizations in California.
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Separate issue - some of the operators are not displayed in the QILL items correctly. Example: If you search for Birth Date > 19920101 - the qill item is:

Birth Date - "January 1st, 1988"

Note that there is a dash rather than a (>) operator in the string. The equal (=) operator seems to work for string comparisons but not for dates. Haven't tried numeric compares...