* Clean up identities in CashTests so that the mini/mega corp keys and identities are correctly
paired together throughout. Previously `miniCorpServices` presented the same key as the
MegaCorp identity, but with the name Mini Corp attached.
* Correct key/name matches in VaultWithCashTest
* Split services in CashTests to not have multiple identities per service hub
* Removal of transaction contract state as BLOB in VaultStates table.
Transaction contract state now resolved using StateLoader (from DBTransactionStorage).
Fixed broken JUnits.
* Changes to address review comments by RP
Address logic error.
* Fixed failing JUnit (CashExitFlowTests.exit zero cash).
* Fix VaultQueryTests to respect transaction visibility boundaries.
* Adopt consistent use of "session" using DatabaseTransactionManager.
* Removed redundant transaction demarcation boundaries in Vault Query tests.
* Added explicit table names (mostly for join tables).
* Shorten or alter name of 2 tables backing notaries.
* Change a compound index declaration to one column index.
Detangle issuers in NodeVaultServiceTest, which has been using two keys on a single node, for different
issuing identities, which doesn't work right now because we don't actually have multiple identity support.
Also remove duplicate data in parameters to fillWithSomeTestCash().
Commit 359610ff14 didn't fully covered:
* Integration tests extends IntegrationTest class which can run SQL scripts before and after a test and before and after test class.
*Driver.kt creates notaries without a table name prefixes (separation is achieved by using different user/schema).
*Revert wrongly altered H2 JDBC connection string for tests.
The motivation for this came with the recent change that a default notary is started by the driver, which if ignored will leak the notary process.
Also, waitForAllNodesToFinish() has been replaced by a driver parameter.
Full requires the command to be `closed` before it can be removed from
the log during compaction. We don't close commands, thus and retaining
the log forever, allowing users to increase the cluster size. The
downsize is the unbounded growth of the size of the log.
Cluster membership changes need testing.
