Version bump to 0.2.4
Version bump to 0.2.4

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