fixed few bugs

[mirkobronzi]

• the command to check if Orion is working changed from orion.client... to orion.client.cli....
• when running Orion, the exp name should be the Orion exp name, not the one in config (that will instead change with every trial).
• removed the warning W503 in flake8 (see also https://www.flake8rules.com/rules/W503.html).