Merge pull request #30 from textpattern/dependabot/npm_and_yarn/grunt-1.6.1

Bump grunt from 1.5.3 to 1.6.1

Author: philwareham

package.json

@@ -10,7 +10,7 @@
     "url": "https://github.com/textpattern/textpattern-themes-website/issues"
   },
   "devDependencies": {
-    "grunt": "1.5.3",
+    "grunt": "1.6.1",
     "grunt-cli": "1.4.3",
     "grunt-concurrent": "3.0.0",
     "grunt-contrib-clean": "2.0.1",