command line data format: OTS lisp parser

[jverbrug]

Command line data format to pass on sources, outputs, analyses to gnt.py. Instead of making a detour via JSON, use existing lisp parser for python:

http://stackoverflow.com/a/14059322

This solution does not need a third language and is both pythonesk and skillesk. And does not require effort from neither side.

[Bart Moeneclaey]

pyparsing is not a built-in library, but ok i guess

[Bart Moeneclaey]

python code now allows specifying sources, outputs and probe properties as follows: ((propname1 val1) (propname2 val2)...)