[LightDM] set_login_button_label with remote X11

[Martin Vogt]

Hello,

when using the lightdm-gtk-greeter with remote X11
(from a terminal) I can login into the same
machine from different locations.

http://bazaar.launchpad.net/~lightdm-gtk-greeter-team/lightdm-gtk-greeter/trunk/view/head:/src/lightdm-gtk-greeter.c

In line 1860 the logic disables the sessiontype and renames
the login_button to "Unlock" in this case.

The greeter should allow to create a new session in this case.

best regards,

Martin