More reliable bower install postinstall.

This makes the bower i work on Mac, Win.

Author: anselmh

package.json

@@ -30,21 +30,21 @@
   },
   "scripts": {
     "test": "grunt test",
-    "postinstall": "node ./node_modules/bower/bin/bower install"
+    "postinstall": "bower install"
   },
   "devDependencies": {
     "grunt-contrib-jshint": "~0.6.0",
     "grunt-contrib-clean": "~0.4.0",
     "grunt-contrib-nodeunit": "~0.2.0",
-    "grunt": "~0.4.1"
+    "grunt": "~0.4.5"
   },
   "dependencies": {
-    "bower": "~1.0.3",
+    "bower": "~1.3.3",
     "temporary": "0.0.7"
   },
   "peerDependencies": {
     "phantomjs": "~1.9.2-2",
-    "grunt": "~0.4.1"
+    "grunt": "~0.4.5"
   },
   "keywords": [
     "gruntplugin",