Code review comment for lp:~jonathanjgster/ibid/jjg

Minor changes following Stefano's recommendations; regex's now in Delicious class; Code has now been tested with both individual and groupchat jabber; failure to extract title results in log.exception instead of log.error

Also, tags that could contain valueless information are now not posted, eg. stefanor@4F6873FA.3661FC01.FAE4B284.IP; similarly there seems to be no value to tagging the connection name with a jabber source