A truly mighty mod normalising HTML tags to uppercase, and 'i' and 'b' to 'EM' and 'STRONG' respectively. Been threatening to do this for months.. no-one need try to maintain this when writing/modifiying the docs.
More HTML cleanups, retrofit of intentional <XA> tag to a no-op <A NAME> (thanks, Marc). Lots of trailing blanks removed throughout. Small addition to the new_features_1_3 page. Plenty of cleanup still to come..