Merge pull request #3800 from reppners/node

+ added missing typings to node path module including tests

node/node.d.ts

@@ -1000,14 +1000,27 @@ declare module "fs" {
 }
 
 declare module "path" {
+
+    export interface ParsedPath {
+        root: string;
+        dir: string;
+        base: string;
+        ext: string;
+        name: string;
+    }
+
     export function normalize(p: string): string;
     export function join(...paths: any[]): string;
     export function resolve(...pathSegments: any[]): string;
+    export function isAbsolute(p: string): boolean;
     export function relative(from: string, to: string): string;
     export function dirname(p: string): string;
     export function basename(p: string, ext?: string): string;
     export function extname(p: string): string;
     export var sep: string;
+    export var delimiter: string;
+    export function parse(p: string): ParsedPath;
+    export function format(pP: ParsedPath): string;
 }
 
 declare module "string_decoder" {