image-properties: show error string when failing to open image

If we fail to open the image file for reading, make sure we still call
load_finished(), which will replace the loading string with an error
message in this case.

https://bugzilla.gnome.org/show_bug.cgi?id=679016
trash-bar: disconnect view signals in dispose()

Rather than finalize(), since the view is usually destroyed when the
slot is disposed.
Fixes a runtime warning.
trash-monitor: make sure to use our icon names for trash
window-menus: remove unused code

These actions were part of the Go menu, which doesn't exist anymore.
icon-names: add back fullcolor icon defines for the desktop

We still want to use fullcolor icons for stock places on the desktop, so
add back separate defines for those icon names.
pathbar: remove unused code

Since we don't show any icon for the trash in the pathbar, there's no
need to listen to the changed signal on the trash monitor here.
desktop-link: use fullcolor icons for the stock desktop links

We don't want icons for these to be symbolic on the desktop.
window: remove unused menubar member in NautilusWindowDetails

We were hitting a warning because of this with the desktop enabled.
Make search button a toggle again
places-sidebar: remove unused code
places-sidebar: use G_DBUS_PROXY_FLAGS_GET_INVALIDATED_PROPERTIES

Simplify the code to get changes from the systemd hostname1
PrettyHostname property by using the GDBusProxy
GET_INVALIDATE_PROPERTIES flag instead of calling Properties.Get()
manually ourselves.
Store the activation uri in recently used, if available

It is better to store the "actual" / target location
rather than a link.

https://bugzilla.gnome.org/show_bug.cgi?id=325824
Add a Recent files place

https://bugzilla.gnome.org/show_bug.cgi?id=325824
Combine the search bar and query editor

Save vertical space by integrating the search bar
with the query editor. This makes it less visually
disruptive when a search becomes active.

https://bugzilla.gnome.org/show_bug.cgi?id=679900
Interpret a blank search as a search for any name

This allows us to filter the list based on other parameters
like file type and to make clearing the search make more sense.

https://bugzilla.gnome.org/show_bug.cgi?id=679900
Enable "just type" searching

https://bugzilla.gnome.org/show_bug.cgi?id=679900
Shorten the live search timeout value

This makes search more responsive.

https://bugzilla.gnome.org/show_bug.cgi?id=679900
Updated POTFILES.in
icon-container: cleanups
window: simplify code