Initial attempt at CMake.
Added CMakeList.
Do moves and stuff.
Minor changes for now.
Did renaming on bison and lex files to make their products
distinguishable.
Reworking the CMake files into a single directory.
Committing change.
We now create the nethacked binary correctly.
Started on the dat target.
Finished changes to allow building via CMake.
Removed extra .gitignore files.
Minor change to avoid catastrophic deleting as before.
Deleting old unneeded files.