trim \r and \n from client input

This fixes clients like bomabdillo not being shown anything when they
only write a \n instead of \r\n.

git-svn-id: file:///srv/svn/repo/tokiko/trunk@3 8f5ca974-a7f8-e144-9f80-d41d5039c194

main.go

@@ -51,7 +51,7 @@ func connHandle(c net.Conn) {
 		return
 	}
 
-	if data == "\r\n" {
+	if strings.TrimRight(data, "\r\n") == "" {
 		printGophermap(c, "./")
 	}