* Improve windows support by looking for the App Engine SDK in the standard   location where it is installed (C:\Program Files\Google\google_appengine).
* Improve windows support by looking for the App Engine SDK in the standard
  location where it is installed (C:\Program Files\Google\google_appengine).

  This code assumes that Program Files is on the same drive as Windows itself.

* Cleaned up the SDK finding code.

dila93/google-app-engine-django,google-code-export/google-app-engine-django,hitrust/google-app-engine-django,brian-zhao/google-app-engine-django,jackxiang/google-app-engine-django,ekkleesia3/google-app-engine-django,termie/google-app-engine-django