Add new highlight.js languages and update to v 8.3

Pack generated from https://highlightjs.org/download/

All 'common' languages included:
apache, css, http, javascript, objectivec, ruby, bash, coffeescript,
ini, makefile, php, sql, cs, diff, json, markdown, perl, cpp, xml,
java, nginx, python

Languages included from 'other':
asciidoc, groovy, dart, haml, go, gradle, less, puppet, scala