updates #215

* Filter by both fullname and jid when searching for users to invite.
* Combine the confirm and prompt popups into a single confirm popup.
* Bugfix in groups filter. Make sure to show group that were previously filtered out.

Otherwise, if the same error presence is received twice, the form will render
twice.

Also, call the directInvite method on the XmppRoom obj of Strophe.MUC. This
will automatically include the room name and password.

* Fix filter predicates.
* Include contact JID in suggestions list

(on incoming messages)

Illustrated via tests.

Otherwise the index of the element relative to which we place it changes
depending on whether the element being positioned is placed before or after it.

Conflicts:
	builds/converse-no-locales-no-otr.min.js
	builds/converse-no-otr.min.js
	builds/converse.min.js
	builds/converse.website-no-otr.min.js
	builds/converse.website.min.js