#473 LXDM 0.5.0 - Group keyboard widgets in greeter's bottom_pane like in lang_box

[jcsl]

Hi.

In greeter.ui there are groups for sessions (sessions_box) and lang (lang_box), but keyboard's label and combobox are separated and there is no icon for this group.

This patch modifies greeter.c, lxdm.glade, greeter.ui and greeter-gtk3.ui in order to create a group for the keyboard stuff (keyboard_box). It also adds logic to restore the keyboard items if they were previously hidden because the window width decreased below 1024 pixels.

A new icon is provided for the keyboard. It is keyboard.png from the 32x32/devices folder in GNOME's icon theme. It can be changed by any other if it isn't very appealing.

This also implements the feature request http://sourceforge.net/p/lxde/feature-requests/240/ I did myself.

Greetings