Fix prevent runtime None in database

probably fixes mr-orange/Sick-Beard#590 after force full update
Merge pull request #592 from itofzo/fix_prevent_runtime_None_PIS

Fix prevent runtime None in database
Merge pull request #593 from Prinz23/Pistachitos

Added DupeKey/DupeScore for NZBGet 12+
Add routines to check or clean GUI input (itofzo)
Fix Exception on adding initial rootdir (ROOT_DIRS not set) (itofzo)
Fix Exception on adding rootdir (unable to open NFO) (itofzo)
Add missing network table update for the Timezone Functions