Eject/unmount icon & new folder icon (#1811)

* Add symbolic icon for eject/unmount

to the right-click action

* Use folder-new icon in nemos toolbar

The right-click action `Create New Folder` uses the
`folder-new-symbolic` icon.
There's also an option to show `Create New Folder` in nemos toolbar. It
uses `folder-symbolic` icon. Change this to use the same icon as for the
right-click action.

Author: NikoKrause

src/nemo-view.c

@@ -8323,11 +8323,11 @@ static const GtkActionEntry directory_view_entries[] = {
   /* label, accelerator */       N_("_Mount"), NULL,
   /* tooltip */                  N_("Mount the selected volume"),
 				 G_CALLBACK (action_mount_volume_callback) },
-  /* name, stock id */         { "Unmount Volume", NULL,
+  /* name, stock id */         { "Unmount Volume", "media-eject-symbolic",
   /* label, accelerator */       N_("_Unmount"), NULL,
   /* tooltip */                  N_("Unmount the selected volume"),
 				 G_CALLBACK (action_unmount_volume_callback) },
-  /* name, stock id */         { "Eject Volume", NULL,
+  /* name, stock id */         { "Eject Volume", "media-eject-symbolic",
   /* label, accelerator */       N_("_Eject"), NULL,
   /* tooltip */                  N_("Eject the selected volume"),
 				 G_CALLBACK (action_eject_volume_callback) },
@@ -8347,11 +8347,11 @@ static const GtkActionEntry directory_view_entries[] = {
   /* label, accelerator */       N_("_Mount"), NULL,
   /* tooltip */                  N_("Mount the volume associated with the open folder"),
 				 G_CALLBACK (action_self_mount_volume_callback) },
-  /* name, stock id */         { "Self Unmount Volume", NULL,
+  /* name, stock id */         { "Self Unmount Volume", "media-eject-symbolic",
   /* label, accelerator */       N_("_Unmount"), NULL,
   /* tooltip */                  N_("Unmount the volume associated with the open folder"),
 				 G_CALLBACK (action_self_unmount_volume_callback) },
-  /* name, stock id */         { "Self Eject Volume", NULL,
+  /* name, stock id */         { "Self Eject Volume", "media-eject-symbolic",
   /* label, accelerator */       N_("_Eject"), NULL,
   /* tooltip */                  N_("Eject the volume associated with the open folder"),
 				 G_CALLBACK (action_self_eject_volume_callback) },
@@ -8419,11 +8419,11 @@ static const GtkActionEntry directory_view_entries[] = {
   /* label, accelerator */       N_("_Mount"), NULL,
   /* tooltip */                  N_("Mount the volume associated with this folder"),
 				 G_CALLBACK (action_location_mount_volume_callback) },
-  /* name, stock id */         { "Location Unmount Volume", NULL,
+  /* name, stock id */         { "Location Unmount Volume", "media-eject-symbolic",
   /* label, accelerator */       N_("_Unmount"), NULL,
   /* tooltip */                  N_("Unmount the volume associated with this folder"),
 				 G_CALLBACK (action_location_unmount_volume_callback) },
-  /* name, stock id */         { "Location Eject Volume", NULL,
+  /* name, stock id */         { "Location Eject Volume", "media-eject-symbolic",
   /* label, accelerator */       N_("_Eject"), NULL,
   /* tooltip */                  N_("Eject the volume associated with this folder"),
 				 G_CALLBACK (action_location_eject_volume_callback) },

src/nemo-window-menus.c

@@ -1503,7 +1503,7 @@ nemo_window_create_toolbar_action_group (NemoWindow *window)
     gtk_action_group_add_action (action_group, GTK_ACTION (action));
     g_signal_connect (action, "activate",
                       G_CALLBACK (action_new_folder_callback), window);
-    gtk_action_set_icon_name (GTK_ACTION (action), "folder-symbolic");
+    gtk_action_set_icon_name (GTK_ACTION (action), "folder-new-symbolic");
     g_object_unref (action);
 
     action = GTK_ACTION (gtk_action_new (NEMO_ACTION_OPEN_IN_TERMINAL,