[WIP] Works on server/sync

hive/db/schema.py

hive/indexer/blocks.py

hive/indexer/cached_post.py

hive/indexer/community.py

hive/indexer/posts.py

hive/server/bridge_api/cursor.py

hive/server/bridge_api/objects.py

hive/server/common/objects.py

hive/server/condenser_api/cursor.py

hive/server/condenser_api/methods.py

hive/server/condenser_api/objects.py

hive/server/condenser_api/tags.py

hive/server/database_api/methods.py

hive/server/hive_api/community.py

hive/server/hive_api/objects.py

hive/server/hive_api/thread.py

hive/server/serve.py

hive/utils/post.py

tests/manual_tests/list_comments_by_permlink.py

tests/server/test_server_database_api.py