### Please describe the problem.

The assistant does not sync file permissions so if you set something as executable it won't be set the same on the other repositories.

### What steps will reproduce the problem?

On the first host:

[[!format sh """
$ echo -e '#!/bin/sh\necho "Hello World!"' > testscript
$ chmod ugo+x testscript 
$ ./testscript 
Hello World!
$ ls -l
total 4
-rwxr-xr-x 1 pedrocr pedrocr 30 May 31 20:00 testscript
"""]]

And on the second host:

[[!format sh """
$ ls -l
total 4
-rw-r--r-- 1 pedrocr pedrocr 30 May 31 20:00 testscript
$ ./testscript
bash: ./testscript: Permission denied
"""]]

### What version of git-annex are you using? On what operating system?

[[!format sh """
$ git annex version
git-annex version: 4.20130516.1
build flags: Assistant Webapp Pairing Testsuite S3 WebDAV Inotify DBus XMPP
local repository version: 4
default repository version: 3
supported repository versions: 3 4
upgrade supported from repository versions: 0 1 2
$ lsb_release -a
No LSB modules are available.
Distributor ID:	Ubuntu
Description:	Ubuntu 12.04.2 LTS
Release:	12.04
Codename:	precise
"""]]
