Keep stack stable and add asserts to ensure no bugs
Keep stack stable and add asserts to ensure no bugs

sousoux/luvit,sousoux/luvit,kaustavha/luvit,AndrewTsao/luvit,connectFree/lev,boundary/luvit,connectFree/lev,DBarney/luvit,rjeli/luvit,sousoux/luvit,AndrewTsao/luvit,rjeli/luvit,DBarney/luvit,kaustavha/luvit,luvit/luvit,boundary/luvit,luvit/luvit,zhaozg/luvit,boundary/luvit,kaustavha/luvit,DBarney/luvit,bsn069/luvit,boundary/luvit,boundary/luvit,DBarney/luvit,GabrielNicolasAvellaneda/luvit-upstream,rjeli/luvit,bsn069/luvit,GabrielNicolasAvellaneda/luvit-upstream,AndrewTsao/luvit,boundary/luvit,sousoux/luvit,brimworks/luvit,bsn069/luvit,rjeli/luvit,sousoux/luvit,GabrielNicolasAvellaneda/luvit-upstream,zhaozg/luvit,sousoux/luvit,GabrielNicolasAvellaneda/luvit-upstream