Disable interactive plots for PDF.

nbconvert cannot output interactive plots to PDF. I wrote code
to remove all of the %matplotlib notebook magic, rerun the notebooks,
and then create the PDF.

pdf/rm_notebook.py

@@ -0,0 +1,15 @@
+import os, sys
+print(sys.argv[1])
+infile = open(sys.argv[1], encoding="utf8")
+data = infile.read()
+infile.close()
+outfile = open(sys.argv[1], "w", encoding="utf8")
+
+data = data.replace("%matplotlib notebook", "#%matplotlib notebook")
+data = data.replace("%matplotlib inline #reset", "#%matplotlib inline #reset")
+data = data.replace("time.sleep", "#time.sleep")
+data = data.replace("fig.canvas.draw", "#fig.canvas.draw")
+data = data.replace("plt.gcf().canvas.draw", "#plt.gcf().canvas.draw")
+
+outfile.write(data)
+outfile.close()