Neil Williams' QOF sync patch.

[Derek Atkins]

Log Message:
-----------
Neil Williams' QOF sync patch.

	* This patch updates the QOF merge code to current QOF to bring
	  the HEAD branch into sync. This update also makes
	  qof_book_merge_param_as_string output strings that are
	  compatible with QSF: using false instead of FALSE in string
	  output and using the QSF_XSD_TIME for the datestrings.

Modified Files:
--------------
    gnucash:
        ChangeLog
    gnucash/src/backend/file:
        Makefile.am
    gnucash/src/backend/file/test:
        Makefile.am
    gnucash/src/engine:
        Account.c
        Account.h
        AccountP.h
        Group.h
        Transaction.c
        gnc-filepath-utils.c
        gnc-lot.c
        gnc-lot.h
        qof_book_merge.c
        qofclass.h
        qofquery-deserial.c
        qofquery-serialize.c
        qofsession-p.h
        qofsession.c
        qofsession.h
        qofsql.c
    gnucash/src/engine/test:
        Makefile.am
        test-book-merge.c
    gnucash/src/gnome:
        druid-merge.c