Add Jade type definition.

jade/jade-tests.ts

@@ -0,0 +1,10 @@
+/// <reference path="jade.d.ts"/>
+
+import jade from 'jade';
+
+jade.compile("b")();
+jade.compileFile("foo.jade", {})();
+jade.compileClient("a")({ a: 1 });
+jade.compileClientWithDependenciesTracked("test").body();
+jade.render("h1",{});
+jade.renderFile("foo.jade");

jade/jade.d.ts

@@ -0,0 +1,19 @@
+// Type definitions for jade
+// Project: https://github.com/jadejs/jade
+// Definitions by: Panu Horsmalahti <panu.horsmalahti@iki.fi>
+// Definitions: https://github.com/borisyankov/DefinitelyTyped
+
+declare module 'jade' {
+    module jade {
+        function compile(template: string, options?: any): (locals?: any) => string;
+        function compileFile(path: string, options?: any): (locals?: any) => string;
+        function compileClient(template: string, options?: any): (locals?: any) => string;
+        function compileClientWithDependenciesTracked(template: string, options?: any): {
+            body: (locals?: any) => string;
+            dependencies: string[];
+        };
+        function render(template: string, options?: any): string;
+        function renderFile(path: string, options?: any): string;
+    }
+    export default jade;
+}