fix(bundle): work around rollup bug rollup/rollup#1322

src/index.ts

@@ -1,5 +1,5 @@
 /** @ng2api @module ng2 */ /** for typedoc */
-export * from "ui-router-core";
+
 export * from "./interface";
 export * from "./decorators/index";
 export * from "./providers";
@@ -8,3 +8,5 @@ export * from "./uiRouterConfig";
 export * from "./directives/directives";
 export * from "./statebuilders/views";
 export * from "./lazyLoad/lazyLoadNgModule";
+
+export * from "ui-router-core";