-scribe no longer writes address statuses nor compacts them during initial sync
-scribe will only precompute address statuses if `--index_address_statuses` is set
-combine history compaction with updating the address status
-updates batched `HubDB.get_transactions_and_merkles` to use and set new lru caches
-caches txs from new blocks in anticipation of those txs being requested soon
-removes _tx_and_merkle_cache
-fixes metrics namespace