* Neil William's patch to remove static mergeData context.

[Derek Atkins]

Log Message:
-----------
	* Neil William's patch to remove static mergeData context.

Modified Files:
--------------
    gnucash:
        ChangeLog
    gnucash/src/engine:
        qof_book_merge.c
        qof_book_merge.h
    gnucash/src/engine/test:
        test-book-merge.c
    gnucash/src/gnome:
        druid-merge.c