Avoid overlong file chooser buttons
Avoid overlong file chooser buttons

When bookmarks are long, the file chooser button would
grow too much. This can be avoided by ellipsizing.

Patch by Ritesh Khadgaray,
https://bugzilla.gnome.org/show_bug.cgi?id=672220

Lyude/gtk-,jadahl/gtk,Adamovskiy/gtk,davidgumberg/gtk,jessevdk/gtk,grubersjoe/adwaita,davidgumberg/gtk,msteinert/gtk,ahodesuka/gtk,davidgumberg/gtk,chergert/gtk,ahodesuka/gtk,davidgumberg/gtk,alexlarsson/gtk,Adamovskiy/gtk,Lyude/gtk-,Lyude/gtk-,jessevdk/gtk,msteinert/gtk,alexlarsson/gtk,jigpu/gtk,jessevdk/gtk,alexlarsson/gtk,ebassi/gtk,jessevdk/gtk,jadahl/gtk,Sidnioulz/SandboxGtk,jigpu/gtk,chergert/gtk,ebassi/gtk,msteinert/gtk,Adamovskiy/gtk,alexlarsson/gtk,chergert/gtk,chergert/gtk,msteinert/gtk,grubersjoe/adwaita,ahodesuka/gtk,ahodesuka/gtk,Sidnioulz/SandboxGtk,ebassi/gtk,grubersjoe/adwaita,Lyude/gtk-,Lyude/gtk-,alexlarsson/gtk,Adamovskiy/gtk,ahodesuka/gtk,grubersjoe/adwaita,jadahl/gtk,Adamovskiy/gtk,chergert/gtk,jadahl/gtk,jigpu/gtk,msteinert/gtk,jigpu/gtk,davidgumberg/gtk,chergert/gtk,davidgumberg/gtk,Adamovskiy/gtk,jigpu/gtk,grubersjoe/adwaita,jadahl/gtk,davidgumberg/gtk,grubersjoe/adwaita,jigpu/gtk,Adamovskiy/gtk,ebassi/gtk,jadahl/gtk,msteinert/gtk,grubersjoe/adwaita,jadahl/gtk,ahodesuka/gtk,ebassi/gtk,Sidnioulz/SandboxGtk,Lyude/gtk-,jigpu/gtk,ahodesuka/gtk,Sidnioulz/SandboxGtk,ebassi/gtk,Lyude/gtk-,jessevdk/gtk,Lyude/gtk-,davidgumberg/gtk,jadahl/gtk,Adamovskiy/gtk,jessevdk/gtk,Sidnioulz/SandboxGtk,grubersjoe/adwaita,chergert/gtk,Sidnioulz/SandboxGtk,alexlarsson/gtk,jessevdk/gtk,ahodesuka/gtk,chergert/gtk,alexlarsson/gtk,alexlarsson/gtk,jigpu/gtk