Not yet fully-tested, but move(), copy(), remove() work properly.  These changes allow for archives themselves to be handled. Without these changes, an archive would be automatically mounted, once mounted, operations on the archive file itself would fail. 
Not yet fully-tested, but move(), copy(), remove() work properly.  These changes allow for
archives themselves to be handled. Without these changes, an archive would be automatically
mounted, once mounted, operations on the archive file itself would fail. 

Also added a max_size parameter to ArchiveMountFS, to avoid mounting really large archives.



git-svn-id: 74b2def6592cf29d88d1a5d33b5c4a2732d8507c@815 67cdc799-7952-0410-af00-57a81ceafa0f

pscottdevos/pyfilesystem,alekibango/pyfilesystem,duedil-ltd/pyfilesystem,pscottdevos/pyfilesystem,alekibango/pyfilesystem