[no bug] Update node-sass to 4.5 and gulp-stylelint to 3.9

Also remove deprecated lint rules

.stylelintrc

@@ -14,13 +14,11 @@
     "property-no-unknown": true,
     "keyframe-declaration-no-important": true,
     "declaration-no-important": true,
-    "declaration-block-no-ignored-properties": true,
     "declaration-block-no-shorthand-property-overrides": true,
     "declaration-block-single-line-max-declarations": 1,
     "declaration-block-trailing-semicolon": "always",
     "declaration-block-semicolon-newline-after": "always-multi-line",
     "block-no-empty": true,
-    "selector-no-empty": true,
     "selector-pseudo-class-no-unknown": true,
     "selector-pseudo-element-no-unknown": true,
     "selector-pseudo-element-case": "lower",
@@ -31,8 +29,6 @@
     "media-feature-name-no-unknown": [true, {
       ignoreMediaFeatureNames: ["min--moz-device-pixel-ratio"]
     }],
-    "media-feature-no-missing-punctuation": true,
-    "stylelint-disable-reason": "always-before",
     "comment-no-empty": true,
     "max-nesting-depth": 5,
     "no-invalid-double-slash-comments": true,

package.json

@@ -9,7 +9,7 @@
   "dependencies": {
     "less": "2.7.1",
     "lockdown": "https://github.com/mozilla/npm-lockdown/archive/v0.0.8.tar.gz",
-    "node-sass": "3.8.0",
+    "node-sass": "4.5.0",
     "yuglify": "0.1.4"
   },
   "repository": {
@@ -25,7 +25,7 @@
     "del": "^2.2.2",
     "gulp": "^3.9.1",
     "gulp-eslint": "^3.0.1",
-    "gulp-stylelint": "^3.7.0",
+    "gulp-stylelint": "^3.9.0",
     "gulp-watch": "^4.3.6",
     "jasmine-core": "^2.4.1",
     "karma": "^0.13.22",