[request] Make sure set_message() actually displays its given message (closes #3003425) The default automatic form sets a standard submit message as session data. However in some cases, such as the cancellation of a form edition, another message is intended to be printed on-screen. This patch makes sure that set_message() really scrubs all previous messages (and ids) from the request object and from the session data.

/**
 *  functions specific to cubicweb on google appengine
 *
 *  :organization: Logilab
 *  :copyright: 2008-2010 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
 *  :contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr
 */

/**
 * .. function:: rql_for_eid(eid)
 *
 * overrides rql_for_eid function from htmlhelpers.hs
 */
function rql_for_eid(eid) {
        return 'Any X WHERE X eid "' + eid + '"';
}