1) Handle empty values for imports and metadata, 2) Moved setter for imports/metadata into SettingTable to clean module namespace
1) Handle empty values for imports and metadata, 2) Moved setter for imports/metadata into SettingTable to clean module namespace

fiuba08/robotframework,fiuba08/robotframework,ldtri0209/robotframework,waldenner/robotframework,ldtri0209/robotframework,waldenner/robotframework,fiuba08/robotframework,waldenner/robotframework,fiuba08/robotframework,fiuba08/robotframework,ldtri0209/robotframework,ldtri0209/robotframework,ldtri0209/robotframework,waldenner/robotframework,waldenner/robotframework