TypeScript support (#160)

* TypeScript support

* set defaultOptions key to VueApollo constructor

package.json

@@ -5,13 +5,15 @@
   "main": "dist/vue-apollo.umd.js",
   "module": "dist/vue-apollo.esm.js",
   "unpkg": "dist/vue-apollo.min.js",
+  "typings": "types/index.d.ts",
   "scripts": {
     "build": "npm run build:browser && npm run build:es && npm run build:umd",
     "build:browser": "rollup --config build/rollup.config.browser.js",
     "build:es": "rollup --config build/rollup.config.es.js",
     "build:umd": "rollup --config build/rollup.config.umd.js",
     "prepublish": "npm run build",
-    "dev": "npm-watch"
+    "dev": "npm-watch",
+    "test:types": "tsc -p types/test"
   },
   "watch": {
     "build": "src/*.js"
@@ -40,6 +42,11 @@
     "lodash.throttle": "^4.1.1"
   },
   "devDependencies": {
+    "@types/graphql": "^0.11.7",
+    "apollo-cache-inmemory": "^1.1.1",
+    "apollo-client": "^2.0.3",
+    "apollo-link": "^1.0.3",
+    "apollo-link-http": "^1.2.0",
     "babel-core": "^6.26.0",
     "babel-eslint": "^7.1.1",
     "babel-plugin-external-helpers": "^6.22.0",
@@ -51,6 +58,8 @@
     "eslint-plugin-node": "^5.2.1",
     "eslint-plugin-promise": "^3.4.0",
     "eslint-plugin-standard": "^3.0.1",
+    "graphql": "^0.11.7",
+    "graphql-tag": "^2.5.0",
     "npm-watch": "^0.3.0",
     "rimraf": "^2.6.1",
     "rollup": "^0.50.0",
@@ -59,6 +68,8 @@
     "rollup-plugin-node-resolve": "^3.0.0",
     "rollup-plugin-replace": "^2.0.0",
     "rollup-plugin-uglify": "^2.0.1",
-    "uglify-es": "^3.1.6"
+    "typescript": "^2.6.2",
+    "uglify-es": "^3.1.6",
+    "vue": "^2.5.9"
   }
 }