Update libraries

Fixes #14378

tgui/package.json

@@ -14,7 +14,7 @@
     "es5-shim": "~4.4.1",
     "gulp": "github:gulpjs/gulp#4.0",
     "gulp-bytediff": "~1.0.0",
-    "gulp-cssnano": "~2.0.0",
+    "gulp-cssnano": "~2.0.1",
     "gulp-if": "~2.0.0",
     "gulp-load-plugins": "~1.1.0",
     "gulp-postcss": "~6.0.1",
@@ -25,7 +25,7 @@
     "gulp-uglify": "~1.5.1",
     "hexa-color-regex": "~1.0.0",
     "html5shiv": "~3.7.3",
-    "ie8": "~0.2.10",
+    "ie8": "~0.2.11",
     "minimist": "1.2.0",
     "pleeease-filters": "~2.0.0",
     "postcss": "~5.0.14",
@@ -41,7 +41,7 @@
     "require-globify": "~1.3.0",
     "stylus": "~0.53.0",
     "through2": "~2.0.0",
-    "webfontloader": "~1.6.16"
+    "webfontloader": "~1.6.20"
   },
   "aliasify": {
     "aliases": {