added cpim modules: utility to parse/generate message/cpim content

darcs-hash:20081205083746-b2873-17ad9f71e78a1567a8e09ed874af7e5d24584789
added trafficlog module

darcs-hash:20081205083852-b2873-c8114e7e0c70d4bedcfefeb83d0a1f5ead19aee7