Merge pull request #60 from togusafish/tachikoma/update-20150628102715

Exec tachikoma update 20150628102715

Author: sanemat

package.json

@@ -11,7 +11,7 @@
     "bower": "^1.3.5",
     "grunt": "^0.4.5",
     "grunt-chrome-manifest": "^0.2.1",
-    "grunt-concurrent": "^1.0.0",
+    "grunt-concurrent": "^2.0.0",
     "grunt-contrib-clean": "^0.6.0",
     "grunt-contrib-coffee": "^0.13.0",
     "grunt-contrib-compass": "^1.0.1",