Added http://github-api.kohsuke.org/, a new Java client API
Use package names to disambiguate Java libraries

"GitHub Java API" and "GitHub API for Java" have (obviously) very
similar names. Add the top-level package name to disambiguate these
client libraries.
Merge pull request #273 from jdubois/master

Add http://github-api.kohsuke.org, a new client library for Java.