TS updates (#1625)

* Update index.d.ts

Added missing handleExceptions boolean in LoggerOptions

* Add :any to logmethod and loglevelmethod

It is valid for a user to pass `logger.info({some:object})` or the same `logger.log('info',{some:object})` (or even an array or error) and unfortunately that means we need to add an any type to this declaration.

* Added Logger return method to declarations

(forgot previously)

index.d.ts

@@ -56,17 +56,19 @@ declare namespace winston {
     [optionName: string]: any;
   }
 
-  interface LogMethod {
+   interface LogMethod {
     (level: string, message: string, callback: LogCallback): Logger;
     (level: string, message: string, meta: any, callback: LogCallback): Logger;
     (level: string, message: string, ...meta: any[]): Logger;
     (entry: LogEntry): Logger;
+    (level: string, message: any): Logger;
   }
 
   interface LeveledLogMethod {
     (message: string, callback: LogCallback): Logger;
     (message: string, meta: any, callback: LogCallback): Logger;
     (message: string, ...meta: any[]): Logger;
+    (message: any): Logger;
     (infoObject: object): Logger;
   }