Fixed Issues since Mint 17 RC

All editions
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	mdm: login screen freezes for German speaking users
	mintsources: unable to add PPAs.. print(” %s” % (ppa_info["description"].encode(“utf-8″) or “”)) --> AttributeError: ‘NoneType’ object has no attribute ‘encode’
	mintdrivers: failed to start when connection to the Internet was slow
	system: optimus cards don't work, nvidia-prime only supports LightDM (Fixed in Romeo)


Cinnamon Edition
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MATE Edition
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KDE Edition
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Xfce Edition
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