* put flake8 options into separate file to remove pytest warnings
* remove ResourceLeaked warning in pypy
* suppress warnings from twisted
* ignore deprecation warnings here
* ignore deprecation warning in tests of deprecated methods
* ignore deprecation warnings here
* update test classes
* don`t use deprecated method call
* ignore deprecation warnings here
* proper warning class
* more selective ignoring
* Revert "don`t use deprecated method call"
This reverts commit 59216ab560.
Vostretsov Nikita