update rubocop.yml
update rubocop.yml

* ignore bin folder (generated files)
* allow same length for modules as for classes

closes #6635

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