neo4j/community — pull request #471 by jexp (2012-04-26 12:13:59+00:00)
Title: fix for HA master switch for SpringTransactionManager integration

SpringTransactionManager and UserTransactionImpl stored a reference to the TransactionManager which was no longer
valid after a master-switch, now the tx-manager is looked up in the GraphDatabaseAPI for all operations.

NOTE: The API of UserTransactionImpl changed, it takes a GraphDatabaseAPI constructor parameter again (was changed in 1.7
to javax.transaction.TransactionManager).