Bump v0.5.8
Bump v0.5.8

intentmedia/mailcatcher-jruby,globaldev/mailcatcher,okinaka/mailcatcher,MacroMackie/mailcatcher,SilverCG/mailcatcher,iFixit/mailcatcher,Noxa/mailcatcher,globaldev/mailcatcher,CloCkWeRX/mailcatcher,sj26/mailcatcher,TuffLuck/mailcatcher,intentmedia/mailcatcher-jruby,okinaka/mailcatcher,saisai/mailcatcher,SilverCG/mailcatcher,TuffLuck/mailcatcher,iFixit/mailcatcher,MacroMackie/mailcatcher,saisai/mailcatcher,Noxa/mailcatcher,sj26/mailcatcher