Merge pull request #386 from matrix-org/markjh/rename_pud_to_account_data

synapse/api/filtering.py

synapse/handlers/account_data.py

synapse/handlers/message.py

synapse/handlers/sync.py

synapse/rest/client/v2_alpha/sync.py

synapse/rest/client/v2_alpha/tags.py

synapse/storage/prepare_database.py

synapse/storage/schema/delta/26/account_data.sql

synapse/storage/tags.py

synapse/streams/events.py

synapse/types.py