unicode: update tables to version 10

Change-Id: I3d5f9490cc03fd7e44863adfe878c9f226774b05

Author: Manishearth

src/unicode/maketables.go

@@ -44,7 +44,7 @@ func main() {
 var dataURL = flag.String("data", "", "full URL for UnicodeData.txt; defaults to --url/UnicodeData.txt")
 var casefoldingURL = flag.String("casefolding", "", "full URL for CaseFolding.txt; defaults to --url/CaseFolding.txt")
 var url = flag.String("url",
-	"http://www.unicode.org/Public/9.0.0/ucd/",
+	"http://www.unicode.org/Public/10.0.0/ucd/",
 	"URL of Unicode database directory")
 var tablelist = flag.String("tables",
 	"all",