Add spm support

package.json

@@ -46,5 +46,19 @@
     "karma-chrome-launcher": "~0.1.4",
     "karma-firefox-launcher": "~0.1.3",
     "karma-safari-launcher": "~0.1.1"
+  },
+  "spm": {
+    "main": "src/main.js",
+    "ignore": [
+      ".*",
+      "examples",
+      "test",
+      "tasks",
+      "dist",
+      "Gruntfile.js",
+      "bower.json",
+      "component.json",
+      "*.md"
+    ]
   }
 }