6.2.1 Release

---POOLS CHANGES:
* Zergpool: Changed stratum servers to algo.zergpool.com


---MINERS CHANGES:

* Updated Claymore Neoscrypt to 1.2
* Updated ccminerX16r to Enemy 1.08
* Added new miners X16s and x16r for AMD


---BUG FIXES:

* Duplicated algo in ccminerx16R
* Wrong algo x17 on ccminerx16R