fixed typescript declare

index.d.ts

-declare module 'Log' {
-  export function info(message: string): string;
-  export function notice(message: string): string;
-  export function debug(message: string): string;
-  export function warning(message: string): string;
-  export function log(message: string): string;
+export as namespace Log;
+
+export = Log;
+
+/*~ Write your module's methods and properties in this class */
+declare class Log {
+    constructor(config?: any);
+    info(message: string): string;
+    notice(message: string): string;
+    debug(message: string): string;
+    warning(message: string): string;
+    log(message: string): string;
 }