First Release

Finished the core logic of gpu switching. If desired, you can get notifications of when the gpu switches. The notification system in gSwitch is more conservative than gfxCardStatus. You should never get a notification on startup and temporary switches between the gpus will not trigger a notification. For example, when on force integrated apps like to switch temporarily to the dgpu, and when it switches back to the integrated one there is no reason to send a notification for this. Also added the option of launching the app at startup.