tree checksum vpatch file

all signers:

antecedents: 9981-replay-notice 9982-getdata

press order:

genesis
9992-handle-edge-cases-add-feedback
9991-improved-logging
9990-keep-ephemeral-ports-open
9989-show-wot-nicks
9988-hash-dedup
9987-embargoing
9986-rebroadcast-simple-hearsay-and-more
9985-single-thread
9984-unbork-at-command
9983-knobs
9982-getdata
9981-replay-notice
9980-preserve-bounces

hunks:
blatta/Makefile
blatta/lib/broadcast.py
blatta/lib/station.py
blatta/start_test_net.sh