* [NOD-172] Port EMCH from bchd
* [NOD-172] Fix hdkeychain.TestErrors and add btcec.TestRecoverCompact
* [NOD-172] Make ECMH immutable
* [NOD-172] Fix gofmt errors
* [NOD-172] Add TestMultiset_NewMultisetFromDataSlice and fix Point to be immutable
* [NOD-172] Fix gofmt errors
* [NOD-172] Add test for checking that the Union of a multiset and its inverse is zero
* [NOD-179] Add ECMH Point to all UTXO-structs
* [NOD-179] Fix utxo set tests
* [NOD-179] Fix mempool tests
* [NOD-179] Remove RemoveTxOuts
* [NOD-179] Move serializeBlockUTXODiffData to the top of the file
* [NOD-179] Fix serializeBlockUTXODiffData comment format
* [NOD-179] Fix AddTx comment and name return values
* [NOD-180] Validate utxo commitments
* [NOD-179] Fix TestAcceptingBlock and TestConfirmations to not use the block hash as phantom break even
* [NOD-180] Fix typo
* [NOD-180] move most of the logic in calcUTXOCommitment to UTXOSet.WithTransactions
* [NOD-180] Optionally return error when a transaction in WithTransactions is double spent
* [NOD-180] Rename allowDoubleSpends to ignoreDoubleSpends
* [NOD-177] Removed references to idMerkleRoot.
* [NOD-177] Generated new genesis hashes.
* [NOD-177] Generated new blk_ blocks.
* [NOD-177] Fixed TestHaveBlock.
* [NOD-177] Fixed The rest of the tests.
* [NOD-177] Fixed a couple of comments and a duplicate test.
* [NOD-177] Fixed blocks1-256.bz2.
* [NOD-164] Added validation routine
* [NOD-167] Extracted acceptedIDMerkleRoot calculation to its own method and implemented NextAcceptedIDMerkleRoot.
* [NOD-164] Fixed TestValidateFeeTransaction.
* [NOD-164] Fixed TestFinality.
* [NOD-164] Fixed blk_ tests.
* [NOD-164] Fixed if -> iff in a comment.
* [NOD-164] Minor style changes in comments.
* [NOD-164] Moved validateAcceptedIDMerkleRoot to before its population with the block's own transactions.
Replaced heavy call to verifyAndBuildUTXO in NextBlockFeeTransaction and NextAcceptedIDMerkleRoot with a call to pastUTXO on the virtual.
* [NOD-164] Fixed erroneous comment.
* [NOD-164] Inserted the logic from buildAndSortAcceptedTxs into calculateAcceptedIDMerkleRoot, since the former was meaningless on its own.
* [NOD-164] Changed looping over txsAcceptanceData instead of over node.blues.
* [DEV-378] Added feeAccumulator structures
* [DEV-378] Added logic to create and store fee data when validating a block
* [DEV-378] Renamed feeAccumulator to compactFeeData, and all related entities accordingly
* [DEV-378] Converted MsgTx.TxHash() to pointer to hash and not hash
* [DEV-378] Restructured parameters to buildFeeTransaction and related entities
* [DEV-378] Finished the code that calculates fees for blocks
* [DEV-378] Fix TxIndex after changing the structure of AcceptedTxsData
* [DEV-378] For genesis block: Return empty AcceptedTxsData instead of nil
* [DEV-378] Off-by-one error
* [DEV-378] Length of compactFeeData should be determined by specific method, not
* [DEV-378] Multiple bugfixes in tx fee calculation
* [DEV-378] Calculate fee even if fastAdd, to save feeData
* [DEV-378] use IsEqual instead of == when comparing TxHash
* [DEV-378] txindex: if including block is the new block - don't fetch id from DB
* [DEV-378] Fixed a few typos and made some vars consts
* [DEV-378] Re-organized fee functions, removed redundant functions and constants, and revised a few comments
* [DEV-378] Recovered fmt string changes lost in merge
* [DEV-378] Renamed acceptedTxsData and related types and vars to txsAcceptanceData
* [DEV-378] Some comment fixes
* [DEV-378] Remove redundant .ToString()
* [DEV-376] Changed any instance of %v in format strings with a more specific format token
* [DEV-376] Fixed some more wrong formatting strings + removed redundant
cast
* [DEV-376] Added fmt.Sprintf where it was missing
* [DEV-376] use %s for util.Amount, to invoke .String()
* [DEV-376] Some more fixes in format strings
* [DEV-376] fixed mruinvmap_test to expect the correct behaviour
* [DEV-364] Add fee transactions validation
* [DEV-364] make NextBlockFeeTransactions for creating block templates
* [DEV-364] apply coinbase rules to fee transaction is some cases
* [DEV-364] Add comments
* [DEV-364] put getTXO as separate function
* [DEV-364] Make getParentsFeeData a separate function
* [DEV-364] fix calculateFees
* [DEV-364] force maximum sequence for fee transactions
* [DEV-364] add TestValidateFeeTransactions
* [DEV-364] change fee transaction to be one tx per block rather than one tx for each blue
* [DEV-364] fix tests
* [DEV-364] Use constants instead of inline numbers
