Add the ability to modify the posix permissions (chmod()) and user and group ids (chown()).

Also properly declare cPathString in unixPathToOop:. You can view, comment on, or merge this pull request online at:

https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/283

-- Commit Summary --

* FileAttributes 1.4.0: File permissions and ownership

-- File Changes --

M src/plugins/FileAttributesPlugin/FileAttributesPlugin.c (135)

-- Patch Links --

https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/283.patch https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/283.diff