added _(...).defaults defs

lodash/lodash-tests.ts

@@ -627,6 +627,7 @@ var result = <any>_.cloneDeep(stoogesAges, function(value) {
 
 var foodDefaults = { 'name': 'apple' };
 result = <any>_.defaults(foodDefaults, { 'name': 'banana', 'type': 'fruit' });
+result = <any>_(foodDefaults).defaults({ 'name': 'banana', 'type': 'fruit' });
 
 result = <string>_.findKey({ 'a': 1, 'b': 2, 'c': 3, 'd': 4 }, function(num) {
   return num % 2 == 0;

lodash/lodash.d.ts

@@ -2677,6 +2677,13 @@ declare module _ {
 		object: any,
 		...sources: any[]): any;
 
+		interface LoDashWrapper<T> {
+			/**
+			* @see _.defaults
+			**/
+			defaults(...sources: any[]): LoDashWrapper<any>
+		}
+
 	/**
 	* This method is like _.findIndex except that it returns the key of the first element that 
 	* passes the callback check, instead of the element itself.