Pass all parameters to GtkTextBuffer.get_text()
Pass all parameters to GtkTextBuffer.get_text()

With PyGTK the include_hidden_chars parameter to GtkTextBuffer.get_text() had
a default value [1]. With GTK3+pygi the value must be explicitly passed [2].

[1] http://developer.gnome.org/pygtk/stable/class-gtktextbuffer.html#method-gtktextbuffer--get-text
[2] http://developer.gnome.org/gtk3/3.0/GtkTextBuffer.html#gtk-text-buffer-get-text

[changed description]
Signed-off-by: Sascha Silbe <be4224c72adedf72d459320ee497e22a37089288@activitycentral.com>

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