use terser and clean-css directly

create a sourcemap as well by default

node_modules/debug/package.json

@@ -1,102 +0,0 @@
-{
-  "_from": "debug@^4.1.0",
-  "_id": "debug@4.1.1",
-  "_inBundle": false,
-  "_integrity": "sha512-pYAIzeRo8J6KPEaJ0VWOh5Pzkbw/RetuzehGM7QRRX5he4fPHx2rdKMB256ehJCkX+XRQm16eZLqLNS8RSZXZw==",
-  "_location": "/debug",
-  "_phantomChildren": {},
-  "_requested": {
-    "type": "range",
-    "registry": true,
-    "raw": "debug@^4.1.0",
-    "name": "debug",
-    "escapedName": "debug",
-    "rawSpec": "^4.1.0",
-    "saveSpec": null,
-    "fetchSpec": "^4.1.0"
-  },
-  "_requiredBy": [
-    "/minify"
-  ],
-  "_resolved": "https://registry.npmjs.org/debug/-/debug-4.1.1.tgz",
-  "_shasum": "3b72260255109c6b589cee050f1d516139664791",
-  "_spec": "debug@^4.1.0",
-  "_where": "F:\\projects\\p\\minifyfromhtml\\node_modules\\minify",
-  "author": {
-    "name": "TJ Holowaychuk",
-    "email": "tj@vision-media.ca"
-  },
-  "browser": "./src/browser.js",
-  "bugs": {
-    "url": "https://github.com/visionmedia/debug/issues"
-  },
-  "bundleDependencies": false,
-  "contributors": [
-    {
-      "name": "Nathan Rajlich",
-      "email": "nathan@tootallnate.net",
-      "url": "http://n8.io"
-    },
-    {
-      "name": "Andrew Rhyne",
-      "email": "rhyneandrew@gmail.com"
-    }
-  ],
-  "dependencies": {
-    "ms": "^2.1.1"
-  },
-  "deprecated": false,
-  "description": "small debugging utility",
-  "devDependencies": {
-    "@babel/cli": "^7.0.0",
-    "@babel/core": "^7.0.0",
-    "@babel/preset-env": "^7.0.0",
-    "browserify": "14.4.0",
-    "chai": "^3.5.0",
-    "concurrently": "^3.1.0",
-    "coveralls": "^3.0.2",
-    "istanbul": "^0.4.5",
-    "karma": "^3.0.0",
-    "karma-chai": "^0.1.0",
-    "karma-mocha": "^1.3.0",
-    "karma-phantomjs-launcher": "^1.0.2",
-    "mocha": "^5.2.0",
-    "mocha-lcov-reporter": "^1.2.0",
-    "rimraf": "^2.5.4",
-    "xo": "^0.23.0"
-  },
-  "files": [
-    "src",
-    "dist/debug.js",
-    "LICENSE",
-    "README.md"
-  ],
-  "homepage": "https://github.com/visionmedia/debug#readme",
-  "keywords": [
-    "debug",
-    "log",
-    "debugger"
-  ],
-  "license": "MIT",
-  "main": "./src/index.js",
-  "name": "debug",
-  "repository": {
-    "type": "git",
-    "url": "git://github.com/visionmedia/debug.git"
-  },
-  "scripts": {
-    "build": "npm run build:debug && npm run build:test",
-    "build:debug": "babel -o dist/debug.js dist/debug.es6.js > dist/debug.js",
-    "build:test": "babel -d dist test.js",
-    "clean": "rimraf dist coverage",
-    "lint": "xo",
-    "prebuild:debug": "mkdir -p dist && browserify --standalone debug -o dist/debug.es6.js .",
-    "pretest:browser": "npm run build",
-    "test": "npm run test:node && npm run test:browser",
-    "test:browser": "karma start --single-run",
-    "test:coverage": "cat ./coverage/lcov.info | coveralls",
-    "test:node": "istanbul cover _mocha -- test.js"
-  },
-  "unpkg": "./dist/debug.js",
-  "version": "4.1.1"
-}