javascript: Run identityd with --httpaddr instead of --address

(Fixing fallout of https://veyron-review.googlesource.com/#/c/3310/)
(Nore that veyron_browser/Makefile seemed to have the wrong flag all along)

Change-Id: Iee9c5e66bfdf7786892429b725e9164b40afd6ce
diff --git a/examples/todos/grunt_tasks/subprocesses.js b/examples/todos/grunt_tasks/subprocesses.js
index b104ad8..f3f76bd 100644
--- a/examples/todos/grunt_tasks/subprocesses.js
+++ b/examples/todos/grunt_tasks/subprocesses.js
@@ -53,7 +53,7 @@
     };
     var veyronIdentitySubprocess = startSubprocess(
         VEYRON_IDENTITY_BIN,
-        ['-port=' + c.VEYRON_IDENTITY_PORT]);
+        ['-httpaddr=localhost:' + c.VEYRON_IDENTITY_PORT]);
     var veyronProxySubprocess = startSubprocess(
         VEYRON_PROXY_BIN,
         ['-log_dir=' + c.LOG_DIR, '-addr=' + VEYRON_PROXY_ADDR]);