Sapling Release Candidate

Beta

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Prevent height -> nLockTime

0.3.1

The sapling height is calculated near the sapling activation timestamp.
Until it is set, the node doesn’t know when sapling should be active.

Depending on the speed at which you get blocks from the future, it was
possible that you could see a sapling active block before the sapling
height was set. This would happen only if syncing from a node that
didn’t know the sapling height and a full resync with the most peers
and most variety of incoming block sources was most likely hit by this.

The net effect was that the blocks after sapling activation were marked
as invalid, so by the time the node synced up to the sapling height, it
couldn’t advance.

Beta

Fixed a 404'd libsodium link

Patch gcc 8

# Conflicts:
#	src/cc/CCtx.cpp

Jl777

FSM