add seperate icons for adding by file, url and magnet

change the add/remove icons to simple plus/minus
remove all 32x32 icons

deluge/ui/web/icons/16/LICENSE

@@ -12,6 +12,9 @@ http://www.pinvoke.com
 Licensed under the Creative Common Attribution-ShareAlike 3.0 License.
 
  - add.png
+ - add_file.png
+ - add_magnet.png
+ - add_url.png
  - connection_manager.png
  - create.png
  - down.png

deluge/ui/web/js/deluge-add.js

@@ -56,17 +56,17 @@ Deluge.Add.Grid = new Ext.grid.GridPanel({
 				id: 'file',
 				cls: 'x-btn-text-icon',
 				text: _('File'),
-				icon: '/icons/16/add.png'
+				icon: '/icons/16/add_file.png'
 			}, {
 				id: 'url',
 				cls: 'x-btn-text-icon',
 				text: _('Url'),
-				icon: '/icons/16/remove.png'
+				icon: '/icons/16/add_url.png'
 			}, {
 				id: 'infohash',
 				cls: 'x-btn-text-icon',
-				text: _('Info Hash'),
-				icon: '/icons/16/error.png'
+				text: _('Infohash'),
+				icon: '/icons/16/add_magnet.png'
 			}, '->', {
 				id: 'remove',
 				cls: 'x-btn-text-icon',