pub const DISCO_INFO_NS: &'static str = "http://jabber.org/protocol/disco#info";
pub const DATA_FORMS_NS: &'static str = "jabber:x:data";
pub const MEDIA_ELEMENT_NS: &'static str = "urn:xmpp:media-element";
pub const JINGLE_NS: &'static str = "urn:xmpp:jingle:1";
pub const PING_NS: &'static str = "urn:xmpp:ping";
pub const CHATSTATES_NS: &'static str = "http://jabber.org/protocol/chatstates";
pub const IBB_NS: &'static str = "http://jabber.org/protocol/ibb";