a46f87f Initialize logging before we do parameter interaction (Jonas Schnelli)
df66147 Move -blocksonly parameter interaction to the new ParameterInteraction() function (Jonas Schnelli)
68354e7 [QT] Call inits parameter interaction before we create the options model (Jonas Schnelli)
411b05a Refactor parameter interaction, call it before AppInit2() (Jonas Schnelli)

faf12bc OpenSSL 1.1.0: Fix text variant of the version number (MarcoFalke)

4ec3561 Replace scriptnum_test's normative ScriptNum implementation (Wladimir J. van der Laan)

cde857f Connect to Tor hidden services by default (Peter Todd)

9b63758 util: Don't set strMiscWarning on every exception (Wladimir J. van der Laan)

c434940 uint256::GetCheapHash bigendian compatibility (daniel)

This switches the Merkle tree logic for blocks to one that runs in constant (small) space.
The old code is moved to tests, and a new test is added that for various combinations of
block sizes, transaction positions to compute a branch for, and mutations:
 * Verifies that the old code and new code agree for the Merkle root.
 * Verifies that the old code and new code agree for the Merkle branch.
 * Verifies that the computed Merkle branch is valid.
 * Verifies that mutations don't change the Merkle root.
 * Verifies that mutations are correctly detected.

a64d7b4 Print correct minimum mempool size in MB (paveljanik)

b8c06ef doc: Add non-style-related development guidelines (Wladimir J. van der Laan)

e482a7f Fix CCoins serialization documentation (Peter Josling)

This may be useful for blockchain explorers.

…ported

* DEFAULT_DISABLE_SAFEMODE = false
* Use DEFAULT_* constants for extern bools

fa41d4c [qt] Move GUI related HelpMessage() part downstream (MarcoFalke)
faf93f3 [trivial] Reuse translation and cleanup DEFAULT_* values (MarcoFalke)
3307bdb Bugfix: Omit wallet-related options from -help when wallet is not supported (Luke Dashjr)
b966aa8 Constrain constant values to a single location in code (Luke Dashjr)

eece63f Switch blocks to a constant-space Merkle root/branch algorithm. (Pieter Wuille)
ee60e56 Add merkle.{h,cpp}, generic merkle root/branch algorithm (Pieter Wuille)

…as compiled on

This allows for much finer control of the transaction fees per kilobyte
as it prevent small transactions using a fee that is more appropriate
for one that is of a kilobyte.

This also allows controlling the fee per kilobyte over rpc such that:

bitcoin-cli settxfee `bitcoin-cli estimatefee 2`

would make sense, while currently it grossly fails often by a factor of x3

a9f3d3d Fix and improve relay from whitelisted peers (Pieter Wuille)

This replaces using inv messages to announce new blocks, when a peer requests
(via the new "sendheaders" message) that blocks be announced with headers
instead of inv's.

Since headers-first was introduced, peers send getheaders messages in response
to an inv, which requires generating a block locator that is large compared to
the size of the header being requested, and requires an extra round-trip before
a reorg can be relayed.  Save time by tracking headers that a peer is likely to
know about, and send a headers chain that would connect to a peer's known
headers, unless the chain would be too big, in which case we revert to sending
an inv instead.

Based off of @sipa's commit to announce all blocks in a reorg via inv,
which has been squashed into this commit.

Rebased-by: Pieter Wuille

49fb8e8 Documentation updates for BIP 130 (Pieter Wuille)
50262d8 Allow block announcements with headers (Suhas Daftuar)

Contains refactorings by Eric Lombrozo.
Contains fixup by Nicolas Dorier.

Includes simplifications by Eric Lombrozo.

Includes support for pushkeyhash wit v0 by Alex Morcos.

Includes fixup by Thomas Kerin.