[Bug 5701] [UPD] Editorial: Move function declarations to Prolog section

http://www.w3.org/Bugs/Public/show_bug.cgi?id=5701

           Summary: [UPD] Editorial: Move function declarations to Prolog
                    section
           Product: XPath / XQuery / XSLT
           Version: Candidate Recommendation
          Platform: All
        OS/Version: Windows XP
            Status: NEW
          Severity: minor
          Priority: P2
         Component: Update Facility
        AssignedTo: andrew.eisenberg@us.ibm.com
        ReportedBy: chamberl@almaden.ibm.com
         QAContact: public-qt-comments@w3.org


In the Update specification, it might be better to the section on Function
Declarations from inside Section 5 (Extensions to Existing Expressions) to
inside Section 2.2 (Extensions to the Prolog), because a function declaration
is not an expression.