ignore *parsetab.py

to be used with the convention to name "*_parsetab.py" the files produced by the various parser generators.

should have been so in:
  209e39e4734353c18a3b0716a4ed57b84172b10d
ignore *.gr1c, *.txt, *.xml

because with logging level at DEBUG the interfaces.{gr1c, jtlv} will automatically generate such files.
add phantom initial states to dot subgraph of initial states

phantom initial states are used to create incoming edges to initial states when plotting with graphviz.