Duplicate Transaction dialog fixes.

[Joshua Sled]

Log Message:
-----------
Duplicate Transaction dialog fixes.
2005-10-08  Joshua Sled  <jsled at asynchronous.org>

	* src/register/ledger-core/dialog-dup-trans.c
	(gnc_dup_trans_dialog): Cleanup the window after dialog returns.
	(gnc_dup_trans_dialog_create): attach to existing signals; re-implement
	spinbutton behavior workaround.

Tags:
----
gnucash-gnome2-dev

Modified Files:
--------------
    gnucash:
        ChangeLog
        GNOME2_STATUS
    gnucash/src/register/ledger-core:
        dialog-dup-trans.c