Push to fix gnome-keyring

[dolmen]

gnome-keyring-daemon does not allow to delete keys that have been loaded at startup. This is a strong bug that may affect github-keygen users, so we should push to fix it.
Verified with gnome-keyring-daemon 3.10.1.

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=472477
https://wiki.gnome.org/Projects/GnomeKeyring/Ssh
http://dtek.net/blog/how-stop-gnome-keyring-clobbering-opensshs-ssh-agent-ubuntu-1204
http://stackoverflow.com/a/25465155

[dolmen]

TODO: try to disable gnome-keyring-daemon with gconftool-2 --set -t bool /apps/gnome-keyring/daemon-components/ssh false.