add HistoryTarget
init network
verify incoming data in network.electrum
add HeaderStorage for VerifiedBlockchain
fix bug with lacking nSequence in RawTx
v0.0.8
Merge pull request #4 from F483/master

merged
getTotalValue refactoring (needs review!)
Merge branch 'master' of github.com:chromaway/cc-wallet-core
removed check from OperationalTx.getChangeAddress
complete VerifiedBlockchain._sync
support for partially-signed transactions
add NaiveBlockchain
update txfetcher and txdb
update CoinManager & CoinStorage
update storages and fix bugs
move cache from network to blockchain
same test code for both blockchain implementations
add a timeout to txFetcher full scan test, because it it slow
make Wallet testcase faster by only fullScanning once on balance