Altered PDF generation.

Added code to inject \appendix to the first appendix notebook
so that they are properly labelled. Started g-h chapter as chapter
one. There is probably a lot more I want to do now that I have
the basic idea of how to inject latex into the files before creating
the PDF, but this is a good start.

clean_book

@@ -8,6 +8,8 @@ rm --f ./*_files/*.png
 rm --f Kalman_and_Bayesian_Filters_in_Python.ipynb
 rm --f Kalman_and_Bayesian_Filters_in_Python.toc
 rm --f Kalman_and_Bayesian_Filters_in_Python.tex
+rm --f short.ipynb
+
 rmdir  ./*_files/ 2> /dev/null
 
 if (( $# == 1)); then