changed tests

beem/cli.py

beem/comment.py

beem/snapshot.py

docs/tutorials.rst

examples/account_curation_per_week_and_1k_sp.py

tests/beem/test_account.py

tests/beem/test_amount.py

tests/beem/test_asset.py

tests/beem/test_base_objects.py

tests/beem/test_block.py

tests/beem/test_blockchain.py

tests/beem/test_blockchain_batch.py

tests/beem/test_blockchain_threading.py

tests/beem/test_cli.py

tests/beem/test_comment.py

tests/beem/test_connection.py

tests/beem/test_constants.py

tests/beem/test_conveyor.py

tests/beem/test_discussions.py

tests/beem/test_instance.py