use terser and clean-css directly

create a sourcemap as well by default

node_modules/jsdom/package.json

@@ -3,9 +3,9 @@
     "parse5": "Pinned to exact version number because we monkeypatch its internals (see htmltodom.js)"
   },
   "_from": "jsdom@^14.0.0",
-  "_id": "jsdom@14.0.0",
+  "_id": "jsdom@14.1.0",
   "_inBundle": false,
-  "_integrity": "sha512-/VkyPmdtbwqpJSkwDx3YyJ3U1oawYNB/h5z8vTUZGAzjtu2OHTeFRfnJqyMHsJ5Cyes23trOmvUpM1GfHH1leA==",
+  "_integrity": "sha512-O901mfJSuTdwU2w3Sn+74T+RnDVP+FuV5fH8tcPWyqrseRAb0s5xOtPgCFiPOtLcyK7CLIJwPyD83ZqQWvA5ng==",
   "_location": "/jsdom",
   "_phantomChildren": {},
   "_requested": {
@@ -21,8 +21,8 @@
   "_requiredBy": [
     "/"
   ],
-  "_resolved": "https://registry.npmjs.org/jsdom/-/jsdom-14.0.0.tgz",
-  "_shasum": "c7f1441ebcc57902d08d5fb2f6ba2baf746da7c6",
+  "_resolved": "https://registry.npmjs.org/jsdom/-/jsdom-14.1.0.tgz",
+  "_shasum": "916463b6094956b0a6c1782c94e380cd30e1981b",
   "_spec": "jsdom@^14.0.0",
   "_where": "F:\\projects\\p\\minifyfromhtml",
   "browser": {
@@ -45,16 +45,16 @@
     "domexception": "^1.0.1",
     "escodegen": "^1.11.0",
     "html-encoding-sniffer": "^1.0.2",
-    "nwsapi": "^2.0.9",
+    "nwsapi": "^2.1.3",
     "parse5": "5.1.0",
     "pn": "^1.1.0",
     "request": "^2.88.0",
     "request-promise-native": "^1.0.5",
-    "saxes": "^3.1.5",
+    "saxes": "^3.1.9",
     "symbol-tree": "^3.2.2",
     "tough-cookie": "^2.5.0",
     "w3c-hr-time": "^1.0.1",
-    "w3c-xmlserializer": "^1.0.1",
+    "w3c-xmlserializer": "^1.1.2",
     "webidl-conversions": "^4.0.2",
     "whatwg-encoding": "^1.0.5",
     "whatwg-mimetype": "^2.3.0",
@@ -71,6 +71,7 @@
     "eslint": "^4.19.1",
     "eslint-find-rules": "^3.3.1",
     "eslint-plugin-html": "^5.0.0",
+    "eslint-plugin-jsdom-internal": "link:./scripts/eslint-plugin",
     "js-yaml": "^3.12.0",
     "karma": "^1.7.1",
     "karma-browserify": "^5.3.0",
@@ -89,7 +90,7 @@
     "st": "^1.2.2",
     "watchify": "^3.11.0",
     "wd": "^1.11.1",
-    "webidl2js": "^9.2.0"
+    "webidl2js": "^9.2.1"
   },
   "engines": {
     "node": ">=8"
@@ -159,5 +160,5 @@
     "update-authors": "git log --format=\"%aN <%aE>\" | sort -f | uniq > AUTHORS.txt",
     "update-wpt": "git submodule update --recursive --remote && cd test/web-platform-tests/tests && python wpt.py manifest --path ../wpt-manifest.json"
   },
-  "version": "14.0.0"
+  "version": "14.1.0"
 }