Upgrade postcss to latest

Author: simonsmith

index.js

@@ -6,7 +6,7 @@ function generatePreset(opts) {
   opts = opts || {};
 
   return function(css) {
-    css.eachAtRule(function (atRule) {
+    css.walkAtRules(function (atRule) {
       if (atRule.name !== 'generate-preset') {
         return;
       }
@@ -58,7 +58,7 @@ function generatePreset(opts) {
         root.insertBefore(atRule, rule);
       });
 
-      atRule.removeSelf();
+      atRule.remove();
     });
   };
 }

package.json

@@ -10,13 +10,13 @@
     "url":  "https://github.com/simonsmith/postcss-generate-preset.git"
   },
   "dependencies": {
-    "postcss": "^4.1.5"
+    "postcss": "^5.0.13"
   },
   "devDependencies": {
-    "gulp-eslint": "0.9.0",
-    "gulp-mocha":  "2.0.1",
-    "chai":        "2.2.0",
-    "gulp":        "3.8.11"
+    "gulp-eslint": "1.1.1",
+    "gulp-mocha": "2.2.0",
+    "chai": "3.4.1",
+    "gulp": "3.9.0"
   },
   "scripts": {
     "test": "gulp"