Squashed commit of the following:

commit 51c1c978163834e3a1b5fb171cb9cbb44d21783b
Author: Jason San Jose <jasonsj@adobe.com>
Date:   Fri Jun 1 13:43:10 2012 -0700

    Implement keyBindingAdded and keyBindingRemoved events

commit f937b2228cc133d578891981db82699cb2a64ea0
Author: Jason San Jose <jasonsj@adobe.com>
Date:   Fri Jun 1 11:17:14 2012 -0700

    Remove keymap

commit 1af5f5887909f682b7da032522f4c93b291becfb
Author: Jason San Jose <jasonsj@adobe.com>
Date:   Thu May 31 16:32:34 2012 -0700

    refactor for  #964

commit 799ca1e
Author: Jason San Jose <jasonsj@adobe.com>
Date:   Thu May 31 12:31:19 2012 -0700

    refactor key descriptor formatting. remove unused dependency.

commit b2c253e
Author: Jason San Jose <jasonsj@adobe.com>
Date:   Thu May 31 11:44:30 2012 -0700

    Supporrt keyboard shortcut display override

src/brackets.js

@@ -57,7 +57,6 @@ define(function (require, exports, module) {
         FileViewController      = require("project/FileViewController"),
         FileSyncManager         = require("project/FileSyncManager"),
         KeyBindingManager       = require("command/KeyBindingManager"),
-        KeyMap                  = require("command/KeyMap"),
         Commands                = require("command/Commands"),
         CommandManager          = require("command/CommandManager"),
         BuildInfoUtils          = require("utils/BuildInfoUtils"),
@@ -203,18 +202,6 @@ define(function (require, exports, module) {
             Dialogs.showModalDialog(Dialogs.DIALOG_ID_ABOUT);
         });
     }
-
-    function initKeyHandler() {
-        window.document.body.addEventListener(
-            "keydown",
-            function (event) {
-                if (KeyBindingManager.handleKey(KeyMap.translateKeyboardEvent(event))) {
-                    event.stopPropagation();
-                }
-            },
-            true
-        );
-    }
 
     function _initWindowListeners() {
         // TODO: (issue 269) to support IE, need to listen to document instead (and even then it may not work when focus is in an input field?)
@@ -245,7 +232,6 @@ define(function (require, exports, module) {
 
         _initDragAndDropListeners();
         _initCommandHandlers();
-        initKeyHandler();
         Menus.init(); // key bindings should be initialized first
         _initWindowListeners();