…hould be placed in a mined block.

Part of #1713
Closes #1716

Closes #1656

Closes #1688

Closes #1685

Add checkpoint at block 2500.

…ted.

…ebfull

Add rpc call z_validateaddress to validate zaddrs.

Closes #1746.

Closes #1753

Closes #1728

…ons, r=ebfull

Throw more descriptive exceptions when the constraint system is violated

Closes #1668.

Remove the lockfile at the end (fixes #1731)
Makes it clearer what happens in the script output if params already exist.

…ion, r=str4d

Adjust consensus rule to accept genesis block without height in coinbase

Closes #1753

… mempool.

Properly account for JoinSplit value when deciding if a transaction should be placed in a mined block.

Closes #1705.

The transaction selection logic in miner.cpp was not updated to account for JoinSplit value. This caused issues that include, but are not limited to, miners not including pure JoinSplit transactions in their blocks.

Linked Bitcoin URL

Reformatted Text

Metrics screen improvements

Closes #1656, #1685, #1688 and #1716

Add build scripts and fetch-params.sh to "make install" and "make dist"

Closes #1728

Add getlocalsolps and getnetworksolps RPC calls, show them in getmininginfo

Isolate verification to a ProofVerifier context object that allows verification behavior to be tuned by the caller.

This is an alternative foundation for zcash#1892, i.e., zcash#1892 will have to be changed if this PR is accepted.

I think this is a safer approach because it allows us to isolate verification behavior to a single object. This will come in handy when @arielgabizon finishes the batching code.

Add benchmarks for rescan components

Part of #1749.

Closes #1857. Fixes bug where a transaction sending from a zaddr would have a priority of zero.

Transactions sent from a zaddr should now be mined sooner as they no longer have a priority of zero

Increase timeout as laptops on battery power have cpu throttling.

Merge this last as other PRs also update the test file `wallet_protectcoinbase.py`.

Also update release-process.md to replace git shortlog command with
release-notes.py script.

…r=str4d

Gather release notes from previous release to HEAD

Release-notes.py used to depend on release already being tagged--now gathers release notes from previous tagged release up to current HEAD.

…s caches

Ref: zcash#1904 (comment)

…lock, r=ebfull

Write witness caches when writing the best block

For steady-state operation, this reduces the average time between wallet disk
writes from once per block to once per hour.

On -rescan, witness caches are only written out at the end along with the best
block, increasing speed while ensuring that on-disk state is kept consistent.

Witness caches are now never recreated during a -reindex, on the assumption that
the blocks themselves are not changing (the chain is just being reconstructed),
and so the witnesses will remain valid.

Part of #1749.

# Conflicts:
#	README.md
#	src/Makefile.gtest.include
#	src/chainparams.cpp
#	src/init.cpp
#	src/miner.cpp
#	src/wallet/wallet.cpp