Specify the correct language to the xmpp server

[naw]

Coccinella should specify the correct language at login. That way, the server will send localized error messages.

Coccinella (in a spanish enviroment) sends:
<stream:stream xmlns='jabber:client' xmlns:stream='http://etherx.jabber.org/streams' xml:lang='en' to='example.org' version='1.0'>

While Psi (in a spanish enviroment) sends:
<stream:stream xmlns:stream="http://etherx.jabber.org/streams" version="1.0" xmlns="jabber:client" to="example.org" xml:lang="es-ES" xmlns:xml="http://www.w3.org/XML/1998/namespace" >

And then, if, in example, the user tries to join on a room in which there is someonewith the same nick, coccinella will display an error message in spanish, but with the error reason in english. While Psi will display a non fullytranslated dialog, but with the reason text (taken from the localized server response) in spanish.

[sander (s-devrieze)]

Bug is probably in jabberlib.tcl