Moved the font specification to the dot command line arguments.
-rw-r--r-- 2214 README.md
-rwxr-xr-x 5274 agtree2dot.py
-rw-r--r-- 35147 gpl-3.0.txt
-rw-r--r-- 10377 mlp.pdf
-rwxr-xr-x 2910 mlp.py