fix a bug with mtime on new files
fix a bug with mtime on new files

and also set ctime in stat results

redbo/cloudfuse,dan-cristian/fasthubicfuse,TurboGit/hubicfuse,dan-cristian/hubicfuse,toddfries/hubicfuse,Am1GO/cloudfuse,AfonsoFGarcia/cloudfuse,AfonsoFGarcia/cloudfuse,Am1GO/cloudfuse,dan-cristian/hubicfuse,flovilmart/cloudfuse,LabAdvComp/cloudfuse,flovilmart/cloudfuse,TurboGit/hubicfuse,dan-cristian/fasthubicfuse,redbo/cloudfuse,toddfries/hubicfuse,LabAdvComp/cloudfuse