use stdlib logger for FEDERATION_LOGGER, closes #5657
use stdlib logger for FEDERATION_LOGGER, closes #5657

SuperTux88/diaspora,jhass/diaspora,Amadren/diaspora,KentShikama/diaspora,despora/diaspora,Muhannes/diaspora,Amadren/diaspora,despora/diaspora,Amadren/diaspora,geraspora/diaspora,diaspora/diaspora,Muhannes/diaspora,SuperTux88/diaspora,KentShikama/diaspora,spixi/diaspora,Flaburgan/diaspora,jhass/diaspora,spixi/diaspora,SuperTux88/diaspora,diaspora/diaspora,SuperTux88/diaspora,geraspora/diaspora,Flaburgan/diaspora,jhass/diaspora,Muhannes/diaspora,diaspora/diaspora,geraspora/diaspora,spixi/diaspora,geraspora/diaspora,Flaburgan/diaspora,Flaburgan/diaspora,Muhannes/diaspora,despora/diaspora,despora/diaspora,spixi/diaspora,KentShikama/diaspora,KentShikama/diaspora,jhass/diaspora,Amadren/diaspora,diaspora/diaspora