Move a few commands around to try and better align with HIG 2.0.

[David Hampton]

Log Message:
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Move a few commands around to try and better align with HIG 2.0.
Update the window title whenever the user changes pages.

Tags:
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gnucash-gnome2-dev

Modified Files:
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    gnucash/src/gnome-utils:
        gnc-main-window.c