check mtime when checking whether to skip copying of files - fixes #114
check mtime when checking whether to skip copying of files - fixes #114

onemen/yarn,lawliet89/yarn,onemen/yarn,suitupalex/yarn,troydemonbreun/yarn,mvestergaard/yarn,mvestergaard/yarn,joeyespo/yarn,CHECK24/yarn,ConAntonakos/yarn,mgcrea/yarn,joeyespo/yarn,mourner/yarn,MiguelAlho/yarn,CHECK24/yarn,dxu/yarn,FLGMwt/yarn,dguo/yarn,kasperlewau/yarn,bsansouci/esy,kasperlewau/yarn,bsansouci/esy,suitupalex/yarn,lawliet89/yarn,mourner/yarn,dxu/yarn,troydemonbreun/yarn,bsansouci/esy,seripap/emojiless-yarn,andreypopp/esy,MiguelAlho/yarn,dguo/yarn,seripap/emojiless-yarn,FLGMwt/yarn,andreypopp/esy,andreypopp/esy,mgcrea/yarn,ConAntonakos/yarn