Merge branch 'develop' into release/v8.1

Author: peterramsing

package.json

@@ -8,8 +8,8 @@
     "url": "https://github.com/peterramsing/lost.git"
   },
   "dependencies": {
-    "postcss": "^5.2.8",
-    "object-assign": "^4.1.0"
+    "object-assign": "^4.1.0",
+    "postcss": "^6.0.2"
   },
   "keywords": [
     "grid",
@@ -26,6 +26,7 @@
   "homepage": "http://lostgrid.org",
   "devDependencies": {
     "chai": "^3.5",
+    "clean-css": "^4.1.4",
     "codecov": "^2.1.0",
     "eslint": "^3.16",
     "mocha": "^3.2",

test/check.js

@@ -2,10 +2,13 @@
 
 var expect  = require('chai').expect;
 var lost    = require('../lost');
+var cleanCss = require('clean-css');
 var postcss = require('postcss');
 
 module.exports = function check( input, output, opts ) {
   var processor = postcss([lost(opts)]);
+  var cleanInput = new cleanCss({}).minify(processor.process(input).css);
+  var cleanOutput = new cleanCss({}).minify(output);
 
-  expect(processor.process(input).css).to.equal(output);
+  expect(cleanInput.styles).to.equal(cleanOutput.styles);
 };