server (tasks): new `js_modules` implicit task: /!\ either `yarn` (preferred) or `npm` (fallback) is a new dependency This task will install JS modules specified in `browser_meta.js` using either `yarn` or `npm`. A mapping for Brython can also be specified in browser metadata, in this case Python modules will be created and put in the `js_modules` python package.

syntax: glob
*.pyc
*.pyv
*.swp
*.swo
*.js
tags
twistd.log
twistd.pid
sat.egg-info
*.un~
dist
MANIFEST
*.sh
build/
Session.vim
ctags_links/
html/