<!--
Describe the change in summary section, including rationale and degin decisions.
Include "Fixes #nnn" if you are fixing an existing issue.
In "Component Name" section write which component is changed in this PR. This
will help us review your PR quicker.
If you have more information you want to add, write them in "Additional
Information" section. This is usually used to help others understand your
motivation behind this change. A step-by-step reproduction of the problem is
helpful if there is no related issue.
-->
##### Summary
Fix: #4756
`python.d.plugin` updates:
* remove `retries` option
* make `penalty` configurable (enabled by default, max is 10 minutes)
> penalty indicates whether to apply penalty to update_every in case of failures.
> Penalty will increase every 5 failed updates in a row. Maximum penalty is 10 minutes.
> penalty: yes
##### Component Name
`python.d.plugin`
##### Additional Information
* tor: python tor module init version
* tor: minor
* tor: minor
* tor: minor
* tor: user super in __init__
* tor: do not suggest to use password by default
* tor: add module to python.d.conf
