added pfileutil.py
recognizes python as LANG
fixed var name conflict 'in' --> '_in'
added pfunct; todo: read subprocess stdout, test
reads subprocess stdout; todo: test, main?
works for python main functions; todo: more testing
added python test files - add and helloworld
added python reserved words to lex
commented out lines so that pfunct can be added to target file
added svel file to test Add.py; svelTest works with python; todo: more testing
Merge pull request #61 from chrso/python

Testing support for Python