Pool regions
Noticed Zpool.ps1 contains $Zpool_Regions = "us"
but

Zpool has US/Eur : 

STRATUM SERVERS - North America <na> - Europe <eu>
ccminer example:
-o stratum+tcp:// < algo > . < region > .mine.zpool.ca:<PORT> -u <WALLET_ADDRESS> [-p c=<SYMBOL>,<OPTIONS>]

Blockmasters have announced Eur stratum servers but don't know info

![image](https://user-images.githubusercontent.com/38868187/46916965-99bd0080-cfb9-11e8-9aba-1f2a0dc05469.png)
