New media permission, show dialog when not enabled for voice msg

UI now in separate renderer:
  - the permissions popup
  - settings dialog
  - debug log dialog
  - about window

Couple bug fixes:
  - About Window: Fix 'escape' to close window
  - Remove outdated dist/copy tasks from Gruntfile

Eslintified settings_view.js

js/views/app_view.js

@@ -14,8 +14,6 @@
     events: {
       'click .openInstaller': 'openInstaller', // NetworkStatusView has this button
       openInbox: 'openInbox',
-      'change-theme': 'applyTheme',
-      'change-hide-menu': 'applyHideMenu',
     },
     applyTheme: function() {
       var theme = storage.get('theme-setting') || 'android';