chore(package): update gulp-pug-linter to version 0.7.0

Closes #15

Author: greenkeeper[bot]

package.json

@@ -12,7 +12,7 @@
   ],
   "main": "gulpfile.js",
   "devDependencies": {
-    "gulp-pug-linter": "^0.5.1",
+    "gulp-pug-linter": "^0.7.0",
     "gulp-sass-lint": "^1.3.2",
     "gulp-standard": "^12.0.0",
     "gulp-webserver": "^0.9.1",