bump to 0.8.3.99
bump to 0.8.3.99

mat/rake,tmornini/rake,utilum/rake,zzak/rake,mat/rake,ruby/rake,hsbt/rake,envato/rake,hsbt/rake,bentley/rake,taiganakagawa/rake,envato/rake,ipmobiletech/rake,jaustinhughey/rake,pjump/rake,ruby/rake,Vanzct/rake,esasse/rake,codedogfish/rake,88rabbit/rake,askl56/rake