remove revcomp strand, wrong place for it. Add subpart to item data so we know if something is an exon or whatever.

remove recomp stuff to view. Add function to see if window is locked to another. Make sure exon/intron coords reported in status line. Improve destroy of windows.

removed some rubbish
hopefully better memory stuff for parser

better memory stuff for parser

This is needed as while expat has XML_{S,G}etBase, they maybe nested and expat doesn't support a stack for this.

altered handlers' signatures accordingly

A large rewrite of Robs dreadful code, he just didn't understand what he was doing. I think we now call blixem correctly.