0.9.1 [2020-11-13]

• [deps] Updated cryptography minimum version to 3.2 for security reasons;
  The version range has also been relaxed to avoid having to update it too often, future versions up to but excluding 4.0 will be accepted
• [fix] Removed static() call from admin media
• [tests] Updated openwisp-utils[qa] to 0.7