Add stale bot config.
Add stale bot config.

andrewsomething/libcloud,ByteInternet/libcloud,mistio/libcloud,ByteInternet/libcloud,andrewsomething/libcloud,mistio/libcloud,Kami/libcloud,ByteInternet/libcloud,andrewsomething/libcloud,Kami/libcloud,apache/libcloud,mistio/libcloud,Kami/libcloud,apache/libcloud,apache/libcloud