Update dev dependencies

Author: philwareham

package.json

@@ -17,9 +17,9 @@
     "url": "https://github.com/textpattern/textpattern-jquery-ui-theme/issues"
   },
   "devDependencies": {
-    "autoprefixer": "6.3.3",
+    "autoprefixer": "6.3.4",
     "grunt": "~0.4.5",
-    "grunt-cli": "~0.1",
+    "grunt-cli": "~1.0",
     "grunt-concurrent": "2.2.1",
     "grunt-contrib-clean": "1.0.0",
     "grunt-contrib-copy": "1.0.0",