message: Updates for .gitignore.
diff: *~
  *.map
  +.vscode
  node_modules/
  src/resourceloader.js
  src/utf8encoding.js
  @@ -71,3 +72,19 @@ src/viewers/TerminalViewer.js
  src/viewers/TerminalViewerTypes.js
  src/viewers/TextViewer.js
  src/viewers/TipViewer.js
  +src/SupportsClipboardPaste.js
  +src/ViewerElement.js
  +src/gui/CheckboxMenuItem.js
  +src/gui/CommandPaletteTypes.js
  +src/gui/ContextMenu.js
  +src/gui/DropDown.js
  +src/gui/MenuItem.js
  +src/gui/PopDownDialog.js
  +src/gui/PopDownListPicker.js
  +src/gui/PopDownNumberDialog.js
  +src/gui/ScrollBar.js
  +src/gui/StackedWidget.js
  +src/gui/Tab.js
  +src/gui/TabWidget.js
  +src/gui/Util.js
  +src/plugins/TextViewer/TextViewerPlugin.js
  