New Modules: * (web rss) for grabbing RSS feeds (e.g. /. headlines) * (web memcache) interface to memcached * shtml->tag-tree converter Serializer: * Make the serializer run faster * Make the serializer output be more compact (represent immediates as immediates, etc.) * Serialization of entire environments so that complex objects (e.g. GOOPS objects and procedures) can be more correctly reconstructed Session: * Thread-safe acccess of *session-hash-table* Done: * Rewrite db code to be more efficient (don't use hash tables) * Replace existing serializer with the new unreleased version * Rewrite session support to use new serializer