#16 asked to clean up the list and remove links that refer to material that does not follow modern cmake standards.
I moved anything that either uses (except to say it's wrong) one of the following commands:
- include_directories
- add_definitions
- add_compile_options
Same thing if the project tries to set CMAKE_<LANG>_FLAGS.
I did not remove modules repositories links unless they use the above in the README or examples.
