v.0.20.0

Improvements:

1. [LUNA-8316] Unexpected HASP/Guardant server response status during license feature retrieval is logged at DEBUG level with extended details.

Bugs fixed:

1. [LUNA-8316] If an attempt to retrieve the value of a feature from an activated license fails, 422 error is returned instead of 500 error.

Migration:

See a migration manual.