code reorg

[rfvander]

• Source files are gradually getting out of hand in terms of size. We need to break them into pieces and give them recognizable names

• Source and header files are currently mixed. all header files should go to the include directory

• We need to clean up stray text, decide on a uniform coding and commenting style

[keitat]

Any suggestions? As for headers, I do not see any in src except the one auto-generated by .in file.

[rfvander]

It was a general comment. It will take some time to develop a uniform coding style. Of course, if you already have one, we can adopt that.

Yes, can we move that generated header file to /include as well?

[keitat]

Yes, I can. I guess we also want to make the best effort to keep 1-to-1 correspondence between .h and .c files.