[NTG-context] exit codes of texexec and texsync

Hello, the exit code of texsync is now 1 in all cases: success or failure of rsync. It should be 0 on success. The exit code of texexec is now 1 on success and 0 on failure. It should be the other way round. Cheers, Peter -- http://pmrb.free.fr/contact/