* Updated to WebExtensions
* Added a "package-lock.json" file for npm 5 usage
* From 2.0.0 (released only as part of temporary "Add Search Number")
** Make search result link detection use querySelector
** We no longer focus on elements when they are selected as the focus code was not working well
** Reinstated/Added support for most major default search engines
*** Yahoo HK/TW/US
*** Bing
*** DuckDuckGo
*** Wikipedia