Move list of `pkg` targets to `package.json.pkg.targets` (#503)

package.json

@@ -13,12 +13,18 @@
     "test": "npm run build && npm run lint && ava",
     "prepublish": "npm run build",
     "build": "./build.sh",
-    "pack": "pkg bin/now.js --config package.json --out-dir packed -t node7-alpine-x64,node7-linux-x64,node7-macos-x64,node7-win-x64"
+    "pack": "pkg bin/now.js --config package.json --out-dir packed"
   },
   "pkg": {
     "scripts": [
       "bin/*",
       "lib/**/*"
+    ],
+    "targets": [
+      "node7-alpine-x64",
+      "node7-linux-x64",
+      "node7-macos-x64",
+      "node7-win-x64"
     ]
   },
   "bin": {
@@ -99,7 +105,7 @@
     "eslint-config-prettier": "1.7.0",
     "husky": "0.13.3",
     "lint-staged": "3.4.1",
-    "pkg": "3.0.1",
+    "pkg": "3.0.2",
     "prettier": "1.3.0",
     "slackup": "2.0.1",
     "xo": "0.18.1"