Added a component.json file for Twitter's Bower package manager.

See [https://github.com/twitter/bower#defining-a-package](Defining a
package) for more information about how the file was generated.

Author: DevinClark

Diff for: component.json

@@ -0,0 +1,9 @@
+{
+  "name": "handlebars.js",
+  "version": "1.0.0-rc.3",
+  "main": "dist/handlebars.js",
+  "ignore": [
+    "node_modules",
+    "components"
+  ]
+}