First rewrite using tex and dot2tex
little updates on user options, update README
Update README
Update noStraightEdges option
Update README
Update example
Update example gv and tex files
Fix bug where interesting would ignore shapes
Add check to see if programs exist. Update README
Add way to highlight in diff colours
clean up interesting match
Clean up node colouring
Update example files
Improve handling of pdflatex, now uses template file.

Don't need to create individual tex files - just pass GraphViz file into template.tex and it'll sort it out. Need to add options for eg straightedges, etc
Update tex template
remove old tex file
Revert back from doing template to just printing out a tex file
Tidy up, reduce output from latex
Remove noautosize
Remove spare line from tex