Added modeline string into every c and h file

Samo Penic

2016-03-02 7f607660a91b969daa19dbdb62628691bfee8f7e

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Original written by Dan Kroll in FORTRAN. Code was then largely adapted and commented by Miha Fosnaric-Fosni. Rewritten into C by Samo Penic-Peni, with help of Miha's extensive explanations.