update readme for local testing
fix permissions of ssh folders
implement os-dependent selection of cipher, kex and mac
deactivate tex for rhel
do not write kex, cipher and mac into template if the value is nil
use new robocop exclude style and do not lint test folder
extend complexity check with robocop project defaults
add nil key for rhel and use new robocop style
fix new robocop issues
Merge pull request #21 from TelekomLabs/tests

adapt to new tests