- egw_vfs::stat and egw_vfs_stream_wrapper::url_stat now both have a
parameter $try_create_home=false, which do not create a non-existing
home-directory by default.
- filemanger_ui calls egw_vfs::stat($path,true) to create an evtl.
missing home dir (in case it does not exist because of previous
problems)
--> fixes not working home-dir creation or rename, because url_stat
already tried to create the home-dir