[importer] Use WIN1251 for TAB files in Cyrillic encoding
[importer] Use WIN1251 for TAB files in Cyrillic encoding

nuxcode/cartodb,UCL-ShippingGroup/cartodb-1,nuxcode/cartodb,dbirchak/cartodb,raquel-ucl/cartodb,splashblot/dronedb,nuxcode/cartodb,codeandtheory/cartodb,thorncp/cartodb,nyimbi/cartodb,DigitalCoder/cartodb,dbirchak/cartodb,bloomberg/cartodb,nuxcode/cartodb,UCL-ShippingGroup/cartodb-1,UCL-ShippingGroup/cartodb-1,thorncp/cartodb,raquel-ucl/cartodb,bloomberg/cartodb,dbirchak/cartodb,codeandtheory/cartodb,future-analytics/cartodb,raquel-ucl/cartodb,future-analytics/cartodb,nuxcode/cartodb,splashblot/dronedb,bloomberg/cartodb,DigitalCoder/cartodb,CartoDB/cartodb,nyimbi/cartodb,UCL-ShippingGroup/cartodb-1,bloomberg/cartodb,thorncp/cartodb,UCL-ShippingGroup/cartodb-1,bloomberg/cartodb,splashblot/dronedb,nyimbi/cartodb,raquel-ucl/cartodb,thorncp/cartodb,CartoDB/cartodb,dbirchak/cartodb,codeandtheory/cartodb,dbirchak/cartodb,DigitalCoder/cartodb,CartoDB/cartodb,splashblot/dronedb,splashblot/dronedb,DigitalCoder/cartodb,thorncp/cartodb,codeandtheory/cartodb,nyimbi/cartodb,future-analytics/cartodb,DigitalCoder/cartodb,future-analytics/cartodb,nyimbi/cartodb,future-analytics/cartodb,codeandtheory/cartodb,CartoDB/cartodb,CartoDB/cartodb,raquel-ucl/cartodb