GPU Metis miner based on xptMiner

xptMiner is a multi-algorithm miner and reference implementation of the xpt protocol.

This is a GPU implementation of Metiscoin Algorithm based on it.

for now here's a windows executables https://www.dropbox.com/sh/2wv2awwgebpdo0m/STzOU5tlXa

This has a 2.5% donation which can be set using the -d option (-d 2.5 would be 2.5% donation)