New QOF type, QOF_TYPE_COLLECT and recursive entity copying

[Neil Williams]

Log Message:
-----------
New QOF type, QOF_TYPE_COLLECT and recursive entity copying

Tags:
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gnucash-gnome2-dev

Modified Files:
--------------
    gnucash:
        ChangeLog
    gnucash/src/backend/file/test:
        .cvsignore
    gnucash/src/backend/qsf:
        qsf-backend.c
    gnucash/src/business/business-core:
        gncAddress.c
        gncAddress.h
        gncCustomer.c
        gncCustomer.h
        gncInvoice.c
        gncInvoice.h
        gncOwner.c
        gncOwner.h
    gnucash/src/business/business-gnome:
        gnc-plugin-business.c
    gnucash/src/engine:
        kvp_frame.h
        qof_book_merge.c
        qofclass.h
        qofid.c
        qofid.h
        qofsession.c
        qofsession.h