update lunr

use css smooth scroll

move to webpack

update uglifyjs

Change "fa" to "fas" for Font Awesome 5 (#2649)

* main.js: fa -> fas for FA 5

* Update CHANGELOG and history

Bump dependencies

Release 4.17.2 💎 (#2296)

Release 4.17.1 💎 (#2288)

Release 4.17.0 (#2275)

* Release 4.17.0 💎

* Update CHANGELOG and history

Update onchange development dependency in package.json

Close #2241

Release 4.16.6 💎

Release 4.16.5 💎

Release 4.16.4 💎

Release 4.16.3 💎

Release 4.16.2 💎

Release 4.16.1 💎

Release 4.16.0 💎

Release 4.15.2 💎

exit search screen with Esc key (#2055)

* exit search with esc key feature is added
* closing search screen with esc key feature is added to _main.js

Update NPM dependencies

cc/ #1977