Add WarningLights.

Adds WarningLights, an Xcode plug-in that flashes your Philips Hue light bulbs different colours depending on the result of your build.
Merge pull request #91 from mitchellallison/master

Add WarningLights.
Adding another theme for Xcode
Merge pull request #92 from mps/new-theme

Adding another theme for Xcode