* Added more columns/properties to NameData to support updating timestamps, name sales
and reference to last transaction that changed Name (for orphaning support).
* Fixed serialization/deserialization bugs in MessageTransactions
* More tests
* Added simple genesis block timestamp setting to help testing
* Fixed setting account's last reference
* Moved some Poll constants from CreatePollTransaction to Poll
* HSQLDB: added TYPE PollOptionIndex
* HSQLDB: added previous_option_index to VoteOnPollTransactions table to help orphaning
* HSQLDB: renamed "poll" to "poll_name" in same table
* HSQLDB: PollOptions now has additional option_index column
* Improved TransactionTests to allow for different genesis block timestamps.
* Also added VoteOnPollTransaction test
* Replaced occurances of "this.repository.getResultSetBytes(resultSet.getBinaryStream(index))"
with "resultSet.getBytes(index)"
* Replaced corresponding preparedStatement.setBinaryStream() with preparedStatement.setBytes()
* Fixed migrate app so DB can be rebuilt using old v1 Qora client
* Moved Asset issue/deissue code from IssueAssetTransaction to Asset business object.
* Added more constructors for Asset using IssueAssetTransactionData or assetId.
* Moved some constants from transaction transfers to business objects (e.g. IssueAssetTransaction)
(They might now make more sense being in Asset)
* Changed some transaction isValid() checks to use transaction's timestamp instead of NTP.getTime()
* New VotingRepository - as yet unimplemented
Really need to rewrite "migrate" and add a ton of unit tests.
* Add implementation for Account.getBalance(assetId, numberOfConfirmations)
* Added orphan() code to Block (CIYAM AT not yet supported)
* Added getOrder() 'navigation' method to CreateOrderTransaction
* Added missing transaction-type cases to various switches in Transaction, transformers, repositories, etc.
* Various repository delete() methods added
* Added save/delete support for transaction types that include payments, like multipayment and arbitrary
* Changed "recipient" in HSQLDB SharedTransactionPayments from QoraPublicKey to QoraAddress
* Added AssetData transfer object
* Added IssueAssetTransactionData transfer object
* Reworked qora.assets.Asset into business layer object
* Reworked qora.transaction.IssueAssetTransaction into business layer object
* Added corresponding AssetRepository and support in TransactionRepository et al
* Fixed BlockChain in line with asset changes
* Some renaming inside GenesisTransaction to reflect use of transfer object, not business object
* Business transaction objects now take Repository param
* Moved HSQLDB transaction repositories into a sub-package
* Changed HSQLDBSaver.execute(Connection connection) to .execute(Repository repository) to fix visibility issues
and allow repository more control in the future if need be
* Changed from "return null" statements in HSQLDB repositories to throw DataException when an error occurs.
Better to throw than to silently return null?
* Added static version of PublicKeyAccount.verify() for when a repository-backed PublicKeyAccount is not needed
* Fixed getter/setter code template incorrectly producing "this.this.field = param"
