chore: Update npm dependencies and semantic release scripts

Move testing grunt plugins to devDependencies.

Author: prantlf

.travis.yml

@@ -10,7 +10,7 @@ node_js:
   - '6'
   - '4'
 after_success:
-  - npm run semantic-release
+  - npm run travis-deploy-once "npm run semantic-release"
 branches:
   except:
     - /^v\d+\.\d+\.\d+$/

package.json

@@ -27,18 +27,20 @@
   },
   "scripts": {
     "test": "grunt",
-    "semantic-release": "semantic-release"
+    "semantic-release": "semantic-release",
+    "travis-deploy-once": "travis-deploy-once"
   },
   "dependencies": {
-    "chalk": "^2.3.0",
-    "grunt-contrib-clean": "^1.1.0",
-    "grunt-contrib-nodeunit": "^1.0.0",
-    "grunt-html-html-reporter": "^0.2.3"
+    "chalk": "^2.3.1"
   },
   "devDependencies": {
-    "grunt": "^1.0.1",
+    "grunt": "^1.0.2",
+    "grunt-contrib-clean": "^1.1.0",
+    "grunt-contrib-nodeunit": "^1.0.0",
+    "grunt-html-html-reporter": "^0.2.4",
     "grunt-standard": "^3.1.0",
-    "semantic-release": "^12.4.1"
+    "semantic-release": "^12.4.1",
+    "travis-deploy-once": "^4.3.4"
   },
   "peerDependencies": {
     "grunt": ">=0.4.5"