info on latest version is inconsistent

[jf]

as of now, if I were looking at various sources that your typical user would trust, I would get different version numbers:

• CHANGES.md: 1.12.0-430
• "api reference" link from main project page / README: 1.7.1
• GitHub tags: 1.11.423 (which, apparently I can't even use right now: I get a Error building classpath. Could not find artifact buddy:buddy-core:jar:1.11.253 in central (https://repo1.maven.org/maven2/))