test that recursive removedir keeps non-empty parent dirs
test that recursive removedir keeps non-empty parent dirs


git-svn-id: 74b2def6592cf29d88d1a5d33b5c4a2732d8507c@533 67cdc799-7952-0410-af00-57a81ceafa0f

simonluijk/pyFilesystem,duedil-ltd/pyfilesystem,pscottdevos/pyfilesystem,revolunet/pyfilesystem,pscottdevos/pyfilesystem,alekibango/pyfilesystem,anthonybishopric/pyboxfs,alekibango/pyfilesystem,anthonybishopric/pyboxfs