All-singing, all-dancing HTML tag handling for better coping in the face
of malformed (slashdot.org) HTML and simplified logic.
LOCAL_ASSERTs are fatal for me, just annoying for everyone else.
Use ACTIVE_NODE instead of CURRENT_NODE where appropriate.
Moved DOMMOZ_NewStyleDatabase and DOM_StyleDatabaseFromContext here to
enhance libdom's purity of essence.
lock held, and signal reflow via event). Check doc_id before trusting
LO_Element *s. Make <TD>.bgcolor mutable. Use DOM_NewElement instead
of inline hackery. Defend against NULL returns from DOM_HTMLPopElementByType.
Make PR_ASSERTs XP_ASSERT for sake of brave users.
Added event guck for altering attributes (will be rewritten to do
poke-and-schedule).
Tentatively blocked out LM_ClearContextStream, which looks like dead code.
