Todo List Core: - Finish all the Core CSS traits - Implement all non-essential attribute transforms Code issues: - Massive profiling (library occasionally times out on large input) - Fix IPv6 issues - Make URI validation routines tighter (especially mailto) - Distinguish between different types of URIs, for instance, a mailto URI in IMG SRC is nonsensical - Factor out Host validation to its own AttrDef - Rewrite table's child definition Enhancements: - Do fixes for Firefox's inability to handle COL alignment props (Bug 915)