rename web into demo

demo/static/tests/helpers/index.ts

@@ -0,0 +1,11 @@
+export { MockRouter } from "./mock_router";
+export { MockServer } from "./mock_server";
+export { makeMenuInfo, makeTestData, TestData } from "./test_data";
+export { makeTestEnv, makeTestWEnv, TestEnv, TestInfo } from "./test_env";
+export {
+  makeDeferred,
+  makeTestFixture,
+  nextMicroTick,
+  nextTick,
+  normalize
+} from "./test_utils";