Add symbol for delete key

js/id/modes/draw_area.js

@@ -97,22 +97,28 @@ iD.modes.DrawArea = function(wayId) {
 
         map.surface.on('mousemove.drawarea', mousemove);
         map.surface.on('click.drawarea', click);
-        map.keybinding().on('⎋.drawarea', esc)
+
+        map.keybinding()
+            .on('⎋.drawarea', esc)
             .on('⌫.drawarea', backspace)
-            .on('delete.drawarea', del)
+            .on('⌦.drawarea', del)
             .on('↩.drawarea', ret);
     };
 
     mode.exit = function() {
         mode.map.hint(false);
         mode.map.fastEnable(true);
+
         mode.map.surface
             .on('mousemove.drawarea', null)
             .on('click.drawarea', null);
-        mode.map.keybinding().on('⎋.drawarea', null)
+
+        mode.map.keybinding()
+            .on('⎋.drawarea', null)
             .on('⌫.drawarea', null)
-            .on('delete.drawarea', null)
+            .on('⌦.drawarea', null)
             .on('↩.drawarea', null);
+
         window.setTimeout(function() {
             mode.map.dblclickEnable(true);
         }, 1000);

js/id/modes/draw_line.js

@@ -108,23 +108,28 @@ iD.modes.DrawLine = function(wayId, direction) {
             controller.enter(iD.modes.Browse());
         }
 
-        map.keybinding().on('⎋.drawline', esc)
+        map.keybinding()
+            .on('⎋.drawline', esc)
             .on('⌫.drawline', backspace)
-            .on('delete.drawline', del)
+            .on('⌦.drawline', del)
             .on('↩.drawline', ret);
     };
 
     mode.exit = function() {
-        mode.map.hint(false);
-        mode.map.fastEnable(true);
+        mode.map
+            .hint(false)
+            .fastEnable(true);
 
         mode.map.surface
             .on('mousemove.drawline', null)
             .on('click.drawline', null);
-        mode.map.keybinding().on('⎋.drawline', null)
+
+        mode.map.keybinding()
+            .on('⎋.drawline', null)
             .on('⌫.drawline', null)
-            .on('delete.drawline', null)
+            .on('⌦.drawline', null)
             .on('↩.drawline', null);
+
         window.setTimeout(function() {
             mode.map.dblclickEnable(true);
         }, 1000);

js/lib/d3.keybinding.js

@@ -39,8 +39,8 @@ d3.keybinding = function() {
             '⇞': 36, home: 36,
             // Insert key, or ins
             ins: 45, insert: 45,
-            // Delete key, on Mac: ⌫ (Delete)
-            del: 46, 'delete': 46,
+            // Delete key, on Mac: ⌦ (Delete)
+            '⌦': 46, del: 46, 'delete': 46,
             // Left Arrow Key, or ←
             '←': 37, left: 37, 'arrow-left': 37,
             // Up Arrow Key, or ↑