fix(dep): immediate is a dependency, not a devDependency

Author: vvo

package.json

@@ -38,7 +38,6 @@
     "grunt-step": "^1.0.0",
     "grunt-umd": "^2.3.6",
     "grunt-webpack": "^1.0.14",
-    "immediate": "^3.2.3",
     "istanbul-instrumenter-loader": "^1.0.0",
     "jasmine-core": "^2.5.2",
     "jasmine-jquery": "^2.1.1",
@@ -77,5 +76,8 @@
     "release": "./release.sh"
   },
   "version": "0.24.1",
-  "main": "index.js"
+  "main": "index.js",
+  "dependencies": {
+    "immediate": "^3.2.3"
+  }
 }