due to Awesomplete doing things to the DOM and then confusing Snabbdom.

Currently only allows enabling an "App Service", based on pass-in
configuration values.

when we received a message for a yet non-existing chat in singleton
mode.

This is a workaround until we have support for XEP-0198

updates #1111

Calling `remove` without models does nothing

updates #1068

so that you can navigate "back" to the controlbox.

updates #1107

instead of disabling the plugin immediately.

This allows us to change the view_mode dynamically.

Fixes #1072

updates #1072

Otherwise we might have stale disco info and no way to invalidate the cache.

fixes #1106

updates #1106

- Remove misleading comment and fix conditional logic
- Check that there's only one <item> element.

updates #1106