Fixed Issues since Linux Mint 18.2 BETA

All editions
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    redshift-gtk should depend on geoclue-2.0
    onboard is not visible in the app menu

    guest sessions:
        don't start mintwelcome

Cinnamon Edition
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    nemo-preview doesn't work


MATE Edition
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Xfce Edition
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KDE Edition (Plasma 5.8)
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