Update project references to use jQuery 1.9 instead of missing 1.8 file.

bootstrap.datepicker/bootstrap.datepicker-tests.ts

@@ -1,4 +1,4 @@
-/// <reference path="../jquery/jquery-1.8.d.ts"/>
+/// <reference path="../jquery/jquery-1.9.d.ts"/>
 /// <reference path="bootstrap.datepicker.d.ts"/>
 
 function tests_simple() {

bootstrap.datepicker/bootstrap.datepicker.d.ts

@@ -4,7 +4,7 @@
 // Definitions: https://github.com/borisyankov/DefinitelyTyped
 
 
-/// <reference path="../jquery/jquery-1.8.d.ts"/>
+/// <reference path="../jquery/jquery-1.9.d.ts"/>
 
 interface DatepickerOptions {
     format?: string;