[R]: allow max iter in KMeans.
[R]: allow max iter in KMeans.

icoming/FlashX,flashxio/FlashX,flashxio/FlashX,icoming/FlashGraph,icoming/FlashX,icoming/FlashX,flashxio/FlashX,icoming/FlashX,icoming/FlashX,icoming/FlashGraph,icoming/FlashGraph,flashxio/FlashX,icoming/FlashGraph,flashxio/FlashX,icoming/FlashGraph,flashxio/FlashX