This helps us to avoid duplicates by relying on the fact that Backbone
models have unique ids.

Update Lithuanian (lt) translation

As per XEP-0004, the default "type" of data form fields is
"text-single", so a missing "type" attribute should not be treated
differently.

This fixes handling of CAPTCHAs offered by ejabberd.

Removes the need for maintaining a map of keycodes to keys

* Accepts other triggers besides tab or @
* More finegrained control over whether the triggering char is
  included in the returned value or not.

Don't assume order of CSN messages, since `getLastMessageDate` ignores
CSN messages, they sometimes get add above one another.

with `_setElement` fix.

See https://github.com/akre54/Backbone.NativeView/pull/29

With xhr_user_search_url, contact requests are not being sent out

Determines whether we show the icon for opening the client's "About" modal.

updates #1373

* CSN tests don't belong under "Groupchats" section tests.
* Move modal tests to their own grouping

Also include the unminified versions for people who wants to modify
them.

* `connectionInitialized` and `converse-loaded` events
* allow_login` setting

* Add new test helper to create contacts via IQ exchange
* Use roster nickname to set message fullname

When a new contact is added, check if we already have a chatbox open for it,
and if so attach it to the chatbox.

Currently translated at 100.0% (372 of 372 strings)

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

Currently translated at 60.5% (225 of 372 strings)

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

Currently translated at 82.3% (306 of 372 strings)

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

Currently translated at 55.6% (207 of 372 strings)

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

Currently translated at 76.3% (284 of 372 strings)

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

Currently translated at 100.0% (372 of 372 strings)

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