Clean incorrect "_" use in the french translation

https://bugzilla.gnome.org/show_bug.cgi?id=712213
Properly set drop targets

Pointed out in by Nelson Benitez in bug 707679.
Update coding style

gtkplacessidebar.c was looking foreign.

Conflicts:
	gtk/gtkplacessidebar.c
GtkPlacesSidebar: Add local-only

This is necessary to implement the filechooser property
of the same name.

https://bugzilla.gnome.org/show_bug.cgi?id=711574
Filter out duplicate application shortcuts

The file chooser used to do this, the places sidebar
still needs to learn it.

https://bugzilla.gnome.org/show_bug.cgi?id=711636
GtkFileChooser: propagate local-only to sidebar

This fixes a regression from the sidebar merge.
Silence a compiler warning
GtkPlacesSidebar: Show unmounted bookmarks

The GtkFileInfo is only used if there's no bookmark name,
or to get the icon for the remote share or local folder.

https://bugzilla.gnome.org/show_bug.cgi?id=711548
Updated Polish translation
Add a GtkSetting for 'shell-shows-desktop'

Add a GtkSetting for whether the desktop shell is showing the desktop
folder icons.

This is on by default because most desktop shells do show the icons on
the desktop.  We already have a patch in gnome-settings-daemon to bind
this to the org.gnome.desktop.background show-desktop-icons GSettings
key which is off by default on GNOME.

https://bugzilla.gnome.org/show_bug.cgi?id=712302
GtkPlacesSidebar: use shell-shows-desktop setting

Use the just-added shell-shows-desktop GtkSetting to determine if we
should also show the "Desktop" folder in the places sidebar.

https://bugzilla.gnome.org/show_bug.cgi?id=712302
GtkPlacesSidebar: don't unref an object we don't own

gtk_settings_get_default() doesn't return a reference, so don't unref it
during dispose.
GtkSettings: make show-desktop default to FALSE

This broke tests.
Quartz: Set the shows-desktop platform setting

OS X shows icons on the desktop, so set this setting
to TRUE here.
Win32: Set the shows-desktop platform setting

Win32 shows icons on the desktop, so set shows-desktop
to TRUE here.
3.10.4
Bump version
GtkAboutDialog: Fix a corner case of link highlighting

GtkAboutDialog highlights emails written as <...> and
urls written as http://... . gnome-terminal manages to
put <http://...> into its license text, which sadly
confuses the parser into running evolution on http://...

Fix things up far enough that <http://...> is now
recognized as url, and only the part inside the <> is
underlined (for email addresses, we include the <> in
the underline).
Updated Brazilian Portuguese translation
Updated Polish translation