Release Notes - Apache Tephra - 0.11.0-incubating

Improvements:
[TEPHRA-210] Streamline where tephra properties are fetched in TransactionProcessor coprocessor
[TEPHRA-199] Enforce maximum duration a transaction can be used for data writes
[TEPHRA-35] Prune invalid transaction set once all data for a given invalid transaction has been dropped

Bug fixes:
[TEPHRA-218] TransactionStateCache service fails to startup if data.tx.snapshot.dir does not exist
[TEPHRA-208] Compaction removes rows incorrectly for family deletes with column level conflict detection
[TEPHRA-223] Transactions started after a snapshot restore can have incorrect invalid transaction list