handle change smaller than dust threshold
better rescan
corrected commands in README
Merge pull request #154 from tradespoke/master

corrected commands in README
get tuple from get_tx_blockhash
If block_hash isn't string we should see an error
Merge pull request #155 from israellevin/alexwashere

Alexwashere
Merge branch 'master' of github.com:bitcoinx/ngcccbase
fixed problem with rescan, received by address
update confirmations during rescan
txdb and coindb refactoring
txdb-related fixes and refactoring
use chromanode to validate transactions
default to helloblock
fixed p2ptrade (UTXO)
fix in ngccc-server parameter handling, PersistenWallet
initialization workaround