Drop SHA-256 code, leaving only SHA-512.
-rwxr-xr-x 212 .gitignore
-rwxr-xr-x 929 .travis.yml
-rwxr-xr-x 5512 CONTRIBUTING.md
-rwxr-xr-x 11357 LICENSE
-rwxr-xr-x 11358 LICENSE.txt
-rwxr-xr-x 183 NOTICE.txt
-rwxr-xr-x 5484 README.md
-rwxr-xr-x 3434 RELEASE-NOTES.txt
-rwxr-xr-x 1902 checkstyle-suppressions.xml
-rwxr-xr-x 8053 checkstyle.xml
-rwxr-xr-x 1789 fb-excludes.xml
-rwxr-xr-x 26595 pom.xml
drwxr-xr-x - src