delete old NetBeans header

- delete default NetBeans header in every file
- sry for that, but I did a mistake while the release phase
add license header (GPL) to all *.def

- add license header to *.def files
change comments

- LeheSolver.def: add reference to R. Lehe
- findAndDo: add *.def
fix typo
Merge pull request #24 from psychocoderHPC/cleanComments

Add missing GPL headers for .def files