TensorBoard: some bower stuff.

Add iron-demo-helpers as a devDependency.
Remove lodash from list of auto_added dependencies (we do directly depend on it).
Change: 122008402
diff --git a/WORKSPACE b/WORKSPACE
index 9b26760..b3dbc06 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -187,7 +187,7 @@
   name = "iron_overlay_behavior",
   build_file = "bower.BUILD",
   remote = "https://github.com/polymerelements/iron-overlay-behavior.git",
-  tag = "1.7.2",
+  tag = "v1.7.3",
 )
 
 new_git_repository(
@@ -222,7 +222,7 @@
   name = "lodash",
   build_file = "bower.BUILD",
   remote = "https://github.com/lodash/lodash.git",
-  tag = "3.10.1",
+  tag = "3.8.0",
 )
 
 new_git_repository(
diff --git a/tensorflow/tensorboard/bower.json b/tensorflow/tensorboard/bower.json
index b9a6657..ce1d025 100644
--- a/tensorflow/tensorboard/bower.json
+++ b/tensorflow/tensorboard/bower.json
@@ -19,7 +19,6 @@
     "iron-range-behavior",
     "iron-resizable-behavior",
     "iron-validatable-behavior",
-    "lodash",
     "neon-animation",
     "paper-dialog-behavior",
     "paper-material",
@@ -91,8 +90,9 @@
     "web-animations-js": "web-animations/web-animations-js#2.0.0",
     "webcomponentsjs": "webcomponents/webcomponentsjs#0.7.22"
   },
-  "description": "Visualizations for TensorFlow",
+  "description": "TensorBoard: Visualizations for TensorFlow",
   "devDependencies": {
+    "iron-demo-helpers": "PolymerElements/iron-demo-helpers#^1.2.3",
     "web-component-tester": "Polymer/web-component-tester"
   },
   "ignore": [
@@ -103,7 +103,7 @@
     "tests"
   ],
   "license": "Apache-2.0",
-  "name": "tf-vis",
+  "name": "tensorboard",
   "private": true,
   "resolutions": {
     "d3": "3.5.15",