Add keyboard shortcuts to "File" submenu #65
Add keyboard shortcuts to "File" submenu #65

  * Shortcuts for JSON import, JSON export and Quit.
  * Addresses issue https://github.com/nexB/aboutcode-manager/issues/65

Signed-off-by: John M. Horan <62b1a4b1cb52bcf40f8267031eadbe72224a36da@gmail.com>

nexB/aboutcode-manager,nexB/aboutcode-manager,nexB/aboutcode-manager