Fix disfunctional padding in wallet backups. The bug did never surface because we only encrypt strings which are zero terminated anyway.
Make sure internal transactions only show up in 'Both' tab of transactions list.
No need to rethrow ScriptException, as it's a RuntimeException since bitcoinj 0.7 anyway.
Remove recording of key rotation time.
[NO MERGE] Add bitcoinj0.12 flavor.
[WIP] Update to bitcoinj 0.12-SNAPSHOT.
WIP API changes due to HD wallets
Use Guava's Base64 implementaton for encrypting wallet backups.