Replace SASS linting wth SCSS linting

For complete set of checks

.travis.yml

@@ -3,5 +3,5 @@ node_js:
   - 6
 script:
   - npm run eslint
-  - npm run sasslint
+  - npm run scsslint
   - npm test

Gemfile

@@ -0,0 +1,3 @@
+source 'https://rubygems.org'
+
+gem 'scss_lint', '~> 0.48.0', require: false

Gemfile.lock

@@ -0,0 +1,17 @@
+GEM
+  remote: https://rubygems.org/
+  specs:
+    rake (11.2.2)
+    sass (3.4.22)
+    scss_lint (0.48.0)
+      rake (>= 0.9, < 12)
+      sass (~> 3.4.15)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  scss_lint (~> 0.48.0)
+
+BUNDLED WITH
+   1.12.5

package.json

@@ -18,7 +18,6 @@
     "jsdom": "^9.2.1",
     "mocha": "^2.5.3",
     "node-sass": "^3.7.0",
-    "sass-lint": "^1.7.0",
     "uglify-js": "^2.6.2",
     "watchify": "^3.7.0"
   },
@@ -33,7 +32,7 @@
     "browserify": "browserify src/index.js -o dist/smartbanner.js -t [ babelify --presets [ es2015 ] ]",
     "uglify": "uglifyjs dist/smartbanner.js -o dist/smartbanner.min.js",
     "eslint": "eslint src/*.js",
-    "sasslint": "node_modules/sass-lint/bin/sass-lint.js -c .scss-lint.yml src/smartbanner.scss -v -q",
+    "scsslint": "scss-lint src/smartbanner.scss",
     "build:js": "npm run browserify && npm run uglify",
     "build:css": "node_modules/node-sass/bin/node-sass src/smartbanner.scss dist/smartbanner.css",
     "watch:js": "watchify src/index.js -o dist/smartbanner.js -t [ babelify --presets [ es2015 ] ] -v",