Move the "Check & Repair" menu definition to a common location.

[David Hampton]

Log Message:
-----------
Move the "Check & Repair" menu definition to a common location.
Restore the register window "Check & Repair" menu items.

Tags:
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gnucash-gnome2-dev

Modified Files:
--------------
    gnucash:
        ChangeLog
        GNOME2_STATUS
    gnucash/src/gnome:
        gnc-plugin-page-account-tree.c
        gnc-plugin-page-register.c
    gnucash/src/gnome/ui:
        gnc-plugin-page-account-tree-ui.xml
        gnc-plugin-page-register-ui.xml
    gnucash/src/gnome-utils:
        gnc-main-window.c
    gnucash/src/gnome-utils/ui:
        gnc-main-window-ui.xml