Mandatory Upgrade due to Network Rule change starting at block 160,000

Changes since version 0.6.2

- Network rule change: At block 160,000 the PID algorithm will begin using a revised formula to calculate the Network Difficulty in order to prevent rounding differences between the 64-bit Wallets and the 32-bit Wallets.
- Added checkpoint for block 150,000.
- Updated OpenSSL to version 1.0.1s for the Windows Wallet.


Download version 0.7.0 from Github:
https://github.com/kryptohash/kryptohash/releases