v0.2.1a4: Rework Codebase, add some infos after new registrations

add some infos, rewrite code

• Rewrite codebase,
• Add store_authentication_cookie, device_info and customer_info to
  session after device registration (deregister and register new with
  valid access token to obtain this data

v0.2.0

• add async functions
• split client class (please read README)
• add :class:Client for backward compatibility to v0.1.6 (will be removed in future releases)
• some other changes

v0.1.6

Important bugfix for crypto.py

v0.1.5

Add custom Localizations / minor code improvements

v0.1.4

add 2FA / Code improvements

v0.1: Init release

Init release