The register uses a non-visible GtkEntry to handle its data input.

[David Hampton]

Log Message:
-----------
The register uses a non-visible GtkEntry to handle its data input.
Except this widget from being shown by gtk_widget_show_all().

Tags:
----
gnucash-gnome2-dev

Modified Files:
--------------
    gnucash/src/register/register-gnome:
        gnucash-sheet.c