check_data_type, backend configuration and gettext

[Neil Williams]

Log Message:
-----------
check_data_type, backend configuration and gettext

Tags:
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gnucash-gnome2-dev

Modified Files:
--------------
    gnucash/src/engine:
        cashobjects.c
        gnc-date.c
        gnc-event.h
        qof-be-utils.h
        qof.h
        qof_book_merge.h
        qofbackend-p.h
        qofbackend.c
        qofbackend.h
        qofchoice.h
        qofid.h
        qofquery-deserial.h
        qofquery-serialize.h
        qofsession.c
        qofsession.h