### Please describe the problem.
When I try to start the webapp, it fails, complaining about a nautilus script.


### What version of git-annex are you using? On what operating system?
Mythbuntu 12.04 (which is based on XFCE and doesn't have nautilus)
$ git-annex version
git-annex version: 5.20140402
build flags: Assistant Webapp Webapp-secure Pairing S3 WebDAV Inotify DBus DesktopNotify XMPP DNS Feeds Quvi TDFA CryptoHash
key/value backends: SHA256E SHA1E SHA512E SHA224E SHA384E SKEIN256E SKEIN512E SHA256 SHA1 SHA512 SHA224 SHA384 SKEIN256 SKEIN512 WORM URL
remote types: git gcrypt S3 bup directory rsync web webdav tahoe glacier hook external
local repository version: 5
supported repository version: 5
upgrade supported from repository versions: 0 1 2 4

### Please provide any additional information below.

[[!format sh """
# If you can, paste a complete transcript of the problem occurring here.
# If the problem is with the git-annex assistant, paste in .git/annex/daemon.log
$ git-annex webapp

git-annex: /home/mythbuntu/.local/share/nautilus/scripts/git-annex get: openFile: does not exist (No such file or directory)
failed
git-annex: webapp: 1 failed

# End of transcript or log.
"""]]

[[fixed|done]] --[[Joey]]
