* [DEV-222] Changed type of TxOut.Value and util.Amount to uin64
* [DEV-222] Replaced math.MaxUint64 with 0
* [DEV-222] Fixed comment to reflect uint64 instead of int64
* [DEV-222] Fixed overflow comment
* [DEV-97] Moved github.com/daglabs/btcutil into github.com/daglabs/btcd/btcutil.
* [DEV-97] Updated Gopkg.toml to no longer refer to btcutil.
* [DEV-97] Renamed btcutil to util.
This does the minimum work necessary to refactor the block template
generation code into the mining package. The idea is that separating
this code into the mining package will greatly improve its testability,
allow independent benchmarking and profiling, and open up some
interesting opportunities for future development related to mining.
There are some areas related to policy and other configuration that
could be further refactored, however it is better to do that in future
commits in order to keep the changeset as small as possible during this
refactor.
Overview of the major changes:
- Move mining.go -> mining/mining.go
- Move mining_test.go -> mining/mining_test.go
- Add logger to mining package
- Update the MINR subsystem to use the new mining package logger
- Export CoinbaseFlags from the mining package
- BlkTmplGenerator is now mining.BlkTmplGenerator
- Update all references to the mining code to use the package
