This allows users to increase their default birthday if they know that no wallets were created before a certain block, to reduce sync time. It also fixed some failed unit tests that relied on transactions between blocks 1900000 and 2000000.
Using a hardcoded signature ensures that the libraries cannot be swapped out without a core auto update, which requires the standard dev team approval process.
This replaces the previously hardcoded "numberOfAdditionalBatchesToSearch" variable, and specifies the minimum number of empty consecutive addresses required before a set of wallet transactions is considered complete. Used for foreign transaction lists and balances.
This is a simple way to discard the 5-minute online account timestamps (from out of date nodes) once the switch to 30-minute online account timestamps has taken place.
Online account nonces are appended to the onlineAccountsSignatures to avoid the need for a new field, but it probably makes more sense to separate them.
Although BlockMinter could reattach a repository session to its cache of potential blocks,
and these blocks would in turn reattach that repository session to their transactions,
further transaction-specific fields (e.g. creator PublicKeyAccount) were not being updated.
This would lead to NPEs like the following:
Exception in thread "BlockMinter" java.lang.NullPointerException
at org.qortal.repository.hsqldb.HSQLDBRepository.cachePreparedStatement(HSQLDBRepository.java:587)
at org.qortal.repository.hsqldb.HSQLDBRepository.prepareStatement(HSQLDBRepository.java:569)
at org.qortal.repository.hsqldb.HSQLDBRepository.checkedExecute(HSQLDBRepository.java:609)
at org.qortal.repository.hsqldb.HSQLDBAccountRepository.getBalance(HSQLDBAccountRepository.java:327)
at org.qortal.account.Account.getConfirmedBalance(Account.java:72)
at org.qortal.transaction.MessageTransaction.isValid(MessageTransaction.java:200)
at org.qortal.block.Block.areTransactionsValid(Block.java:1190)
at org.qortal.block.Block.isValid(Block.java:1137)
at org.qortal.controller.BlockMinter.run(BlockMinter.java:301)
where the Account has an associated repository session which is now obsolete.
This commit reverts BlockMinter back to obtaining a repository session before entering main loop.
