ZCoin Emergency Mandatory update + user action

Zcoin had an issue with sync after block 220754 and that made many masternodes not operational. The team did an emergency update and new wallet with a fix was released to allow sync with blockchain after the block 220754.

Also, after the update, the user must cast in the console the command: 
reconsiderblock 6107425d088589dcb6fe693a5ce3a928424048fb43cad6215e83e0ef4e01d63d

after that, restart the wallet and everything will sync again