Make gtk_editable_get_chars work as before
Make gtk_editable_get_chars work as before

It used to return actual entry contents, regardless of visiblity.
Make it do that again. This was reported in bug 588461.

jigpu/gtk,davidt/gtk,davidt/gtk,chergert/gtk,johne53/MB3Gtk-2,alexlarsson/gtk,davidt/gtk,msteinert/gtk,jessevdk/gtk,Unity-Technologies/gtk,msteinert/gtk,Lyude/gtk-,ebassi/gtk,davidt/gtk,Sidnioulz/SandboxGtk,nacho/gtk-,Adamovskiy/gtk,Adamovskiy/gtk,davidt/gtk,Distrotech/gtk2,simokivimaki/gtk,jessevdk/gtk,jigpu/gtk,msteinert/gtk,Adamovskiy/gtk,ahodesuka/gtk,ebassi/gtk,jadahl/gtk,ebassi/gtk,davidgumberg/gtk,Unity-Technologies/gtk,alexlarsson/gtk,davidgumberg/gtk,simokivimaki/gtk,alexlarsson/gtk,Lyude/gtk-,davidgumberg/gtk,chergert/gtk,Lyude/gtk-,davidgumberg/gtk,Lyude/gtk-,Adamovskiy/gtk,alexlarsson/gtk,zsx/gtk,grubersjoe/adwaita,grubersjoe/adwaita,jessevdk/gtk,Sidnioulz/SandboxGtk,bratsche/gtk-,chergert/gtk,bratsche/gtk-,davidgumberg/gtk,msteinert/gtk,simokivimaki/gtk,nacho/gtk-,Unity-Technologies/gtk,chipx86/gtk,Lyude/gtk-,davidgumberg/gtk,nacho/gtk-,chergert/gtk,Sidnioulz/SandboxGtk,grubersjoe/adwaita,jadahl/gtk,Distrotech/gtk2,jessevdk/gtk,ahodesuka/gtk,jadahl/gtk,Lyude/gtk-,simokivimaki/gtk,jadahl/gtk,jigpu/gtk,jadahl/gtk,chipx86/gtk,bratsche/gtk-,davidt/gtk,zsx/gtk,bratsche/gtk-,ahodesuka/gtk,ahodesuka/gtk,Adamovskiy/gtk,Distrotech/gtk,ebassi/gtk,jessevdk/gtk,alexlarsson/gtk,johne53/MB3Gtk-2,jigpu/gtk,jigpu/gtk,Adamovskiy/gtk,chipx86/gtk,bratsche/gtk-,Adamovskiy/gtk,msteinert/gtk,grubersjoe/adwaita,jadahl/gtk,Distrotech/gtk,ebassi/gtk,zsx/gtk,jadahl/gtk,Unity-Technologies/gtk,simokivimaki/gtk,Adamovskiy/gtk,johne53/MB3Gtk-2,johne53/MB3Gtk-2,Distrotech/gtk,Distrotech/gtk,Distrotech/gtk2,zsx/gtk,chergert/gtk,Distrotech/gtk2,jessevdk/gtk,Distrotech/gtk2,Unity-Technologies/gtk,Distrotech/gtk,davidgumberg/gtk,alexlarsson/gtk,Sidnioulz/SandboxGtk,grubersjoe/adwaita,simokivimaki/gtk,grubersjoe/adwaita,grubersjoe/adwaita,Sidnioulz/SandboxGtk,Distrotech/gtk2,jessevdk/gtk,chergert/gtk,msteinert/gtk,chergert/gtk,bratsche/gtk-,ahodesuka/gtk,ebassi/gtk,jigpu/gtk,nacho/gtk-,ahodesuka/gtk,chipx86/gtk,johne53/MB3Gtk-2,alexlarsson/gtk,chergert/gtk,davidgumberg/gtk,jadahl/gtk,Lyude/gtk-,chipx86/gtk,zsx/gtk,jigpu/gtk,Lyude/gtk-,grubersjoe/adwaita,alexlarsson/gtk,ahodesuka/gtk,ahodesuka/gtk,Sidnioulz/SandboxGtk,jigpu/gtk,nacho/gtk-