Updated Spanish translation
Fix Greek, Finnish and French help translations
Updated Hungarian translation
Updated Greek translation
window: The menu icon name changed to open-menu-symbolic
Updated Scottish Gaelic translation
Updated Brazilian Portuguese translation
Updated Norwegian bokmål translation.
Updated Norwegian bokmål translation.
Bump Gtk+ requirements to 3.12

We are now using gtk_application_set_accels_for_action,
which was introduced in gtk+-3.12.

See https://bugzilla.gnome.org/show_bug.cgi?id=733392
ev-toolbar: Implement toolbar with multiple modes

Given the restrictions of GtkHeaderBar for reparenting, we must
implement multiple modes for the toolbar, which can be customized
for Recent View, Full Screen, Preview and Document (normal).

For now, Full Screen, Preview and Document are the same.

https://bugzilla.gnome.org/show_bug.cgi?id=633501
shell: Integrate recent view into the main window

https://bugzilla.gnome.org/show_bug.cgi?id=633501
shell: Remove menu for recent items

Recent menu has been replaced by a bookshelf-like interface.

https://bugzilla.gnome.org/show_bug.cgi?id=633501