core: sendMessage refactoring:

- sendMessage now use JID instead  of unicode, bridge method using unicode is now _sendMessage
    - added no_trigger argument, so it's now possible to forbid trigger execution (to avoid any plugin when we send a message)

src/plugins/plugin_misc_smtp.py

@@ -90,7 +90,7 @@ class SatSmtpMessage(object):
         """handle end of message"""
         mail = Parser().parsestr("\n".join(self.message))
         try:
-            self.host.sendMessage(parseaddr(mail['to'].decode('utf-8', 'replace'))[1], mail.get_payload().decode('utf-8', 'replace'),  # TODO: manage other charsets
+            self.host._sendMessage(parseaddr(mail['to'].decode('utf-8', 'replace'))[1], mail.get_payload().decode('utf-8', 'replace'),  # TODO: manage other charsets
                                   subject=mail['subject'].decode('utf-8', 'replace'), mess_type='normal', profile_key=self.profile)
         except:
             exc_type, exc_value, exc_traceback = sys.exc_info()