Allow sub-containers to create directories used by the default container
Allow sub-containers to create directories used by the default container

GuillaumeDerval/INGInious,layus/INGInious,GuillaumeDerval/INGInious,layus/INGInious,GuillaumeDerval/INGInious,GuillaumeDerval/INGInious,layus/INGInious,layus/INGInious