what's currently broken in dillo

Since fltk had a release today, I was thinking about where dillo stands at
present. Here are the problems that I can think of:

- vsource request crashes when dpid isn't working.
- source is slow to render, presumably something to do with large tables.
- on some sites, rendering never stops as the horizontal scrollbar shows the
  page growing wider and wider.
- on some sites, the ending words of a line are missing.
- text search while loading, assert failed.
- img alt text not constrained by width/height.