Commit Briefs
- [regress-extra] added 'create-path' test;
- [regress-extra] added 'test-close-parent-fid'; - [regress-extra] updated client (some fix and a new hi level procedure to clone a fid added).
- [regress-extra] added test: fails when trying to write on a directory.
- [regress-test] exported condition: '9p-error'.