nemo-dropbox: Update plugin from upstream, fix missing symbolic

icon.

The dropbox package itself provides dropbox.* icons, but we still
want to provide our symbolic one.

Author: mtwebster

nemo-dropbox/data/icons/hicolor/16x16/apps/dropbox.png

@@ -3,10 +3,7 @@ install_subdir('emblems',
 )
 
 if get_option('install-dropbox-files')
-    install_subdir('icons/hicolor',
-        install_dir: get_option('datadir') / 'icons',
-    )
-    install_data('icons/nemo-dropbox/nemo-dropbox-symbolic.svg',
-        install_dir: project_datadir / 'icons',
+    install_subdir('icons',
+        install_dir: get_option('datadir'),
     )
 endif

nemo-dropbox/data/icons/hicolor/22x22/apps/dropbox.png

@@ -10,5 +10,3 @@ override_dh_makeshlibs:
 
 override_dh_auto_install:
 	dh_auto_install
-	# Drop useless files
-	rm -rf debian/nemo-dropbox/usr/share/icons/*