version bump to 2.5
- ensure all files have valid SPDX license identifiers
- remove Red Hat Makefile targets and specfile
- Makefile cleanups and added .gitignore
- drop the 'v' in the version string for the tarball
- Makefile: add options for passing annocheck
- Bump version to 2.5
Signed-off-by: Clark Williams clark.williams@gmail.com