[CARDBOOK] Prefers encrypting locally cached cards

> See: <https://github.com/arkenfox/user.js/issues/323>

.eslintrc.yml

@@ -0,0 +1,45 @@
+%YAML 1.2
+---
+
+root: true
+
+extends: 'eslint:recommended'
+
+globals:
+  # From <https://searchfox.org/mozilla-central/rev/c938c7416c633639a5c8ce4412be586eefb48005/modules/libpref/parser/src/lib.rs#296>
+  pref: true
+  user_pref: true
+  sticky: true
+  locked: true
+  sticky_pref: true
+
+rules:
+  # Expect a semicolon after each statement.
+  semi:
+    - "error"
+    - "always"
+    -
+      omitLastInOneLineBlock: false
+
+  # As internal code style, don't allow tabulation.
+  no-tabs: "error"
+  # ... nor trailing spaces !
+  no-trailing-spaces: "error"
+
+  # Expect only double-quoted strings.
+  quotes:
+    - "error"
+    - "double"
+
+  # Don't allow whitespace before semicolons.
+  semi-spacing:
+    - "error"
+    -
+      before: false
+
+  # Don't allow irregular whitespace characters in our sheet.
+  no-irregular-whitespace:
+    - "error"
+    -
+      skipStrings: false
+      skipComments: false

.github/workflows/linting.yml

@@ -0,0 +1,17 @@
+---
+name: Linting
+
+on: [push, pull_request]
+
+jobs:
+  build:
+    name: Run ESLint on user.js
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - uses: actions/setup-node@v1
+
+      - run: npm install -g eslint
+      - run: eslint user.js

.travis.yml

@@ -1,8 +0,0 @@
-language: node_js
-node_js:
-  - 'node'
-
-before_script:
-  - npm install -g acorn
-script:
-  - acorn --silent user.js

README.md

@@ -1,32 +1,40 @@
 # Thunderbird User.JS
 
-> An ongoing comprehensive user.js template for configuring and hardening Thunderbird privacy, security and anti-fingerprinting
+> Thunderbird privacy, security and anti-fingerprinting: a comprehensive user.js template for configuration and hardening
 
-### :large_blue_diamond: user.js
+### :purple_square: user.js
 
 An `user.js` is a configuration file that can control hundreds of Thunderbird settings.  
 For a more technical breakdown and explanation, you can read more on the [overview](https://github.com/HorlogeSkynet/thunderbird-user.js/wiki/1.1-Overview) Wiki page.
 
-### :large_blue_diamond: thunderbird user.js
+### :green_square: Thunderbird user.js
 
-The Thunderbird `user.js` is a **template** which aims to provide as much privacy and enhanced security as possible.  
-It differs from the `ghacks user.js` in that the focus is to keep Thunderbird as an **email client** and disable as many web browsing features as possible. We believe web browsing should be done in a web browser, and not an email client.
+[![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)
 
-- If you're using Thunderbird with Tor we suggest that you install the [TorBirdy](https://addons.thunderbird.net/addon/torbirdy) add-on. If you are using Tor, you should also consider using [Tails](https://tails.boum.org/) or [Whonix](https://www.whonix.org/).
-- If you're a **Gmail** user see [this article about OAuth2](https://github.com/HorlogeSkynet/thunderbird-user.js/wiki/3.1-OAuth2-Users).
-- For information about [extensions](https://github.com/HorlogeSkynet/thunderbird-user.js/wiki/4.1-Extensions), see the Wiki. **Calendar** users should [see this page](https://github.com/HorlogeSkynet/thunderbird-user.js/wiki/4.1.1-Calendar).
+The `thunderbird user.js` is a **template** which aims to provide as much privacy and enhanced security as possible.  
+It differs from the `arkenfox user.js` in that the focus is to keep Thunderbird as an **email client** and disable as many web browsing features as possible. We believe web browsing should be done in a web browser, and not an email client.
+
+- If you're using Thunderbird (< 68) with Tor we suggest that you install the [TorBirdy](https://addons.thunderbird.net/addon/torbirdy) add-on. If you are using Tor, you should also consider using [Tails](https://tails.boum.org/) or [Whonix](https://www.whonix.org/).
+- If you're using **Gmail**, please check [this article about OAuth2](https://github.com/HorlogeSkynet/thunderbird-user.js/wiki/3.1-OAuth2-Users).
+- For information about [extensions](https://github.com/HorlogeSkynet/thunderbird-user.js/wiki/4.1-Extensions), see the Wiki.
+- **Calendar** users should [see this page](https://github.com/HorlogeSkynet/thunderbird-user.js/wiki/4.1.1-Calendar).
 
 Also be aware that this `user.js` is made specifically for Thunderbird and has only been tested in the latest stable release.
 
-### :large_blue_diamond: Acknowledgments
+### :orange_square: Sitemap
 
-* [tya99](https://github.com/tya99) most of the ground work and initial port from the Firefox version of [ghacks user.js](https://github.com/ghacksuserjs/ghacks-user.js)
-* [dngray](https://github.com/dngray) continual maintenance and Wiki
-* [HorlogeSkynet](https://github.com/HorlogeSkynet) continual maintenance
+- [Releases](https://github.com/HorlogeSkynet/thunderbird-user.js/releases)
+- [Issues](https://github.com/HorlogeSkynet/thunderbird-user.js/issues)
+- [Wiki](https://github.com/HorlogeSkynet/thunderbird-user.js/wiki)
 
-### :large_blue_diamond: Related Projects
+### :red_square: Acknowledgments
 
-* [CHEF-KOCH/TBCK](https://github.com/CHEF-KOCH/TBCK)
-* [Privacy Handbuch](https://www.privacy-handbuch.de/handbuch_31d.htm)
+* @tya99 most of the ground work and initial port from the Firefox version of [arkenfox user.js](https://github.com/arkenfox/user.js)
+* [@dngray](https://github.com/dngray) continual maintenance and Wiki
+* [@HorlogeSkynet](https://github.com/HorlogeSkynet) continual maintenance
 
-### :large_blue_diamond: [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)
+### :blue_square: Related Projects
+
+* [Privacy Handbuch](https://www.privacy-handbuch.de/handbuch_31p.htm)
+* [Privacy Haters](http://r-36.net/scm/privacy-haters/file/README.md.html)
+* ~~CHEF-KOCH/TBCK~~