Convert printing over to g2.

[David Hampton]

Log Message:
-----------
Convert printing over to g2.

Tags:
----
gnucash-gnome2-dev

Modified Files:
--------------
    gnucash:
        ChangeLog
    gnucash/src/gnome:
        dialog-print-check.c
    gnucash/src/gnome-utils:
        gnc-html.c
        gw-gnome-utils-spec.scm
        print-session.c
        print-session.h
    gnucash/src/scm/printing:
        print-check.scm