_TimeoutIcon: use markup instead of Pango for bold text
_TimeoutIcon: use markup instead of Pango for bold text

In Pango 'Pango.attr_weight_new' is not yet introspectable [1].

[1] https://bugzilla.gnome.org/show_bug.cgi?id=646788

Signed-off-by: Simon Schampijer <088e16a1019277b15d58faf0541e11910eb756f6@schampijer.de>
[changed description]
Signed-off-by: Sascha Silbe <be4224c72adedf72d459320ee497e22a37089288@activitycentral.com>

gusDuarte/sugar-toolkit-gtk3,Daksh/sugar-toolkit-gtk3,quozl/sugar-toolkit-gtk3,i5o/sugar-toolkit-gtk3,samdroid-apps/sugar-toolkit-gtk3,gusDuarte/sugar-toolkit-gtk3,puneetgkaur/sugar-toolkit-gtk3,sugarlabs/sugar-toolkit-gtk3,tchx84/sugar-toolkit-gtk3,i5o/sugar-toolkit-gtk3,godiard/sugar-toolkit-gtk3,godiard/sugar-toolkit-gtk3,tchx84/debian-pkg-sugar-toolkit-gtk3,gusDuarte/sugar-toolkit-gtk3,puneetgkaur/sugar-toolkit-gtk3,gusDuarte/sugar-toolkit-gtk3,samdroid-apps/sugar-toolkit-gtk3,ceibal-tatu/sugar-toolkit-gtk3,puneetgkaur/sugar-toolkit-gtk3,Daksh/sugar-toolkit-gtk3,sugarlabs/sugar-toolkit-gtk3,puneetgkaur/backup_sugar_sugartoolkit,puneetgkaur/backup_sugar_sugartoolkit,tchx84/debian-pkg-sugar-toolkit-gtk3,samdroid-apps/sugar-toolkit-gtk3,godiard/sugar-toolkit-gtk3,tchx84/sugar-toolkit-gtk3,samdroid-apps/sugar-toolkit-gtk3,manuq/sugar-toolkit-gtk3,ceibal-tatu/sugar-toolkit-gtk3,manuq/sugar-toolkit-gtk3,i5o/sugar-toolkit-gtk3,tchx84/sugar-toolkit-gtk3,sugarlabs/sugar-toolkit-gtk3,quozl/sugar-toolkit-gtk3,i5o/sugar-toolkit-gtk3,quozl/sugar-toolkit-gtk3,Daksh/sugar-toolkit-gtk3,manuq/sugar-toolkit-gtk3,puneetgkaur/backup_sugar_sugartoolkit,tchx84/debian-pkg-sugar-toolkit-gtk3,quozl/sugar-toolkit-gtk3,ceibal-tatu/sugar-toolkit-gtk3