(deps): replace internal changelog script with package

- forked off changelog-maker to support the same style I use here
  - don't have to cp the script into every library I use it in!
  - (deps): replace original changelog-maker package as well

- supports changelogs that aren't just from latest, so edit the
  package.json script accordingly
  - reminder that `npm run changelog -- ...` allows you to pass args
    into changelog-maker after the `--`
    - tested in @agilgur5/changelog-maker itself too :)

Author: agilgur5

package-lock.json

@@ -14,7 +14,7 @@
     "start": "webpack-dev-server -d --inline --hot",
     "dist": "webpack -p --config webpack.production.config.js",
     "pub": "npm run dist && npm publish",
-    "changelog:latest": "bash scripts/changelog.sh"
+    "changelog": "changelog-maker"
   },
   "keywords": [
     "react",
@@ -40,13 +40,13 @@
   "author": "Anton Gilgur",
   "license": "Apache-2.0",
   "devDependencies": {
+    "@agilgur5/changelog-maker": "^3.0.0",
     "babel-core": "^6.26.3",
     "babel-eslint": "^10.0.2",
     "babel-loader": "^6.0.0",
     "babel-preset-es2015": "^6.14.0",
     "babel-preset-react": "^6.11.1",
     "babel-preset-stage-2": "^6.13.0",
-    "changelog-maker": "^2.3.0",
     "css-loader": "^0.24.0",
     "react": "^15.3.0",
     "react-dom": "^15.3.0",