add convenient deploy script

package.json

@@ -3,10 +3,6 @@
   "description": "manage page meta info in Vue 2.0 server-rendered apps",
   "version": "0.4.4",
   "author": "Declan de Wet <[email protected]>",
-  "files": [
-    "lib",
-    "yarn.lock"
-  ],
   "bugs": "https://github.com/declandewet/vue-meta/issues",
   "dependencies": {
     "deepmerge": "^1.2.0",
@@ -59,6 +55,10 @@
     "webpack": "beta",
     "webpack-dev-server": "beta"
   },
+  "files": [
+    "lib",
+    "yarn.lock"
+  ],
   "homepage": "https://github.com/declandewet/vue-meta",
   "keywords": [
     "attribute",
@@ -88,12 +88,15 @@
   "scripts": {
     "build": "rollup -c",
     "codecov": "codecov",
+    "deploy": "npm version",
     "dev": "babel-node examples/server.js",
     "lint": "standard --verbose | snazzy",
     "minify": "uglifyjs lib/vue-meta.js -cm --comments -o lib/vue-meta.min.js",
     "postbuild": "npm run minify",
+    "postdeploy": "git push origin master --follow-tags && npm run release",
     "postversion": "npm run update-cdn && git add . && git commit -m \":ship: CDN update\"",
     "prebuild": "rimraf lib",
+    "predeploy": "git checkout master && git pull -r",
     "prerelease": "npm run build",
     "pretest": "npm run lint",
     "preversion": "npm run toc",