Don't rewrite the urls for assets loaded via `url()` in CSS.

Instead, they should be relative to the CSS file.

Bumps [npm](https://github.com/npm/cli) from 6.11.3 to 6.13.4. **This update includes security fixes.**
- [Release notes](https://github.com/npm/cli/releases)
- [Changelog](https://github.com/npm/cli/blob/latest/CHANGELOG.md)
- [Commits](https://github.com/npm/cli/compare/v6.11.3...v6.13.4)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [tar](https://github.com/npm/node-tar) from 2.2.1 to 2.2.2. **This update includes a security fix.**
- [Release notes](https://github.com/npm/node-tar/releases)
- [Changelog](https://github.com/npm/node-tar/blob/master/CHANGELOG.md)
- [Commits](https://github.com/npm/node-tar/compare/v2.2.1...v2.2.2)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [uglify-js](https://github.com/mishoo/UglifyJS2) from 3.7.4 to 3.7.7.
- [Release notes](https://github.com/mishoo/UglifyJS2/releases)
- [Commits](https://github.com/mishoo/UglifyJS2/compare/v3.7.4...v3.7.7)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [webpack-merge](https://github.com/survivejs/webpack-merge) from 4.2.1 to 4.2.2.
- [Release notes](https://github.com/survivejs/webpack-merge/releases)
- [Changelog](https://github.com/survivejs/webpack-merge/blob/master/CHANGELOG.md)
- [Commits](https://github.com/survivejs/webpack-merge/compare/v4.2.1...v4.2.2)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [fstream](https://github.com/npm/fstream) from 1.0.11 to 1.0.12. **This update includes a security fix.**
- [Release notes](https://github.com/npm/fstream/releases)
- [Commits](https://github.com/npm/fstream/compare/v1.0.11...v1.0.12)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [mixin-deep](https://github.com/jonschlinkert/mixin-deep) from 1.3.1 to 1.3.2. **This update includes a security fix.**
- [Release notes](https://github.com/jonschlinkert/mixin-deep/releases)
- [Commits](https://github.com/jonschlinkert/mixin-deep/compare/1.3.1...1.3.2)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [https-proxy-agent](https://github.com/TooTallNate/node-https-proxy-agent) from 2.2.2 to 2.2.4. **This update includes security fixes.**
- [Release notes](https://github.com/TooTallNate/node-https-proxy-agent/releases)
- [Commits](https://github.com/TooTallNate/node-https-proxy-agent/compare/2.2.2...2.2.4)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [install](https://github.com/benjamn/install) from 0.9.6 to 0.13.0.
- [Release notes](https://github.com/benjamn/install/releases)
- [Commits](https://github.com/benjamn/install/compare/v0.9.6...v0.13.0)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [http-server](https://github.com/http-party/http-server) from 0.11.1 to 0.12.1.
- [Release notes](https://github.com/http-party/http-server/releases)
- [Commits](https://github.com/http-party/http-server/compare/0.11.1...v0.12.1)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [@babel/plugin-syntax-dynamic-import](https://github.com/babel/babel) from 7.2.0 to 7.8.3.
- [Release notes](https://github.com/babel/babel/releases)
- [Changelog](https://github.com/babel/babel/blob/master/CHANGELOG.md)
- [Commits](https://github.com/babel/babel/compare/v7.2.0...v7.8.3)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [sinon](https://github.com/sinonjs/sinon) from 7.3.2 to 8.1.1.
- [Release notes](https://github.com/sinonjs/sinon/releases)
- [Changelog](https://github.com/sinonjs/sinon/blob/master/CHANGELOG.md)
- [Commits](https://github.com/sinonjs/sinon/compare/v7.3.2...v8.1.1)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

* This allow you to ignore some bootstrap modules you have already included/imported
to your project. Fix error: In a webpage you are already using bootstrap and have
a dropdown, but you have to click twice to make it work, because conversejs added
another handler.

* Add:
   - Allow ignoring bootstrap modules using environment variable: BOOTSTRAP_IGNORE_MODULES="Modal,Dropdown".
     Example: export BOOTSTRAP_IGNORE_MODULES="Modal,Dropdown" ; make dist

Currently translated at 100.0% (440 of 440 strings)

Translation: Converse.js/Translations
Translate-URL: https://hosted.weblate.org/projects/conversejs/translations/af/

Currently translated at 32.2% (142 of 441 strings)

Translation: Converse.js/Translations
Translate-URL: https://hosted.weblate.org/projects/conversejs/translations/th/

Currently translated at 8.6% (38 of 440 strings)

Translation: Converse.js/Translations
Translate-URL: https://hosted.weblate.org/projects/conversejs/translations/mr/

Currently translated at 88.2% (388 of 440 strings)

Translation: Converse.js/Translations
Translate-URL: https://hosted.weblate.org/projects/conversejs/translations/ru/

Currently translated at 83.0% (365 of 440 strings)

Translation: Converse.js/Translations
Translate-URL: https://hosted.weblate.org/projects/conversejs/translations/hu/

Currently translated at 31.4% (138 of 440 strings)

Translation: Converse.js/Translations
Translate-URL: https://hosted.weblate.org/projects/conversejs/translations/uk/

Currently translated at 99.8% (439 of 440 strings)

Translation: Converse.js/Translations
Translate-URL: https://hosted.weblate.org/projects/conversejs/translations/fr/

Currently translated at 48.9% (215 of 440 strings)

Translation: Converse.js/Translations
Translate-URL: https://hosted.weblate.org/projects/conversejs/translations/ro/

Currently translated at 100.0% (440 of 440 strings)

Translation: Converse.js/Translations
Translate-URL: https://hosted.weblate.org/projects/conversejs/translations/ja/

Currently translated at 100.0% (440 of 440 strings)

Translation: Converse.js/Translations
Translate-URL: https://hosted.weblate.org/projects/conversejs/translations/gl/

- Collapse 3 different loops into one.
- Check all saved stanza ids in the parsed attrs, not just the archive id
- Remove check for archive id in converse-mam since it just duplicates what's now being done in converse-chat
- Don't use disco to check for support, XEP-359 mandates that services SHOULD advertise support,
  which is not a strong enough guarantee that they do.

updates #1856

Only set `id` once we've actually parsed the sender attributes,
otherwise `attrs.from` is `undefined`.

Use `Array.prototype.reduce` to generate stanza_ids attributes map.

Add `from_muc` attribute which contains the MUC JID