[LAD] petri-foo/specimen license formalizations/clarifications

hi, sorry for cross posting (again), but i want to try and get this out to all people who've been involved in specimen development over the years. i've add a gpl header to all source files with (where appropriate) copyright attributed to Pete Bessman as original specimen author and myself as current developer of petri-foo. there are some files i claim to be my own work, these are listed in PETRI-FOO_ORIGINAL_FILES along with short explanations. the changes can be found in the latest git commit. https://github.com/jwm-art-net/Petri-Foo if anyone has issues, or finds a lack of attribution to their work, or thinks how it's done is unfair, speak up.... but please don't get all esoteric about it ;-) regards, james.