Begin migrating preferences over to the new dialog.

[David Hampton]

Log Message:
-----------
Begin migrating preferences over to the new dialog.

Tags:
----
gnucash-gnome2-dev

Modified Files:
--------------
    gnucash:
        ChangeLog
    gnucash/src/app-utils:
        Makefile.am
        gnc-ui-util.c
        gnc-ui-util.h
        guile-util.c
        prefs.scm
    gnucash/src/backend:
        gnc-backend-api.h
    gnucash/src/backend/file:
        Makefile.am
        gnc-backend-file.c
    gnucash/src/gnome:
        gnc-plugin-page-register.c
        gnc-split-reg.c
        top-level.c
        window-reconcile.c
    gnucash/src/gnome/schemas:
        apps_gnucash_dialog_common.schemas
        apps_gnucash_general.schemas
    gnucash/src/gnome-utils:
        QuickFill.c
        QuickFill.h
        account-quickfill.c
        dialog-transfer.c
        dialog-utils.c
        gnc-tree-model-account.c
    gnucash/src/register/ledger-core:
        gnc-ledger-display.c
        split-register-load.c
        split-register-model.c
        split-register.c
        split-register.h
    gnucash/src/register/register-core:
        combocell.h
    gnucash/src/register/register-gnome:
        combocell-gnome.c
        gnucash-sheet.c