Merge pull request #3343 from Nemo157/rest-wrap-fi

Rest wrap fixes

rest/rest-tests.ts

@@ -15,7 +15,7 @@ client({ path: '/data.json' }).then(function(response) {
     console.log('response: ', response);
 });
 
-client = rest.wrap(mime).wrap(errorCode, { code: 500 });
+client = rest.wrap(mime, { mime: 'application/json' }).wrap(errorCode, { code: 500 });
 client({ path: '/data.json' }).then(
     function(response) {
         console.log('response: ', response);

rest/rest.d.ts

@@ -14,7 +14,7 @@ declare module "rest" {
 	function rest(request: rest.Request): rest.ResponsePromise;
 
 	module rest {
-		export function wrap(interceptor: Interceptor): Client;
+		export function wrap(interceptor: Interceptor, config?: any): Client;
 
 		export interface Request {
 			method?: string;