`/current/` points to latest ga (not build snapshot).

I was going to add a 3.0.x symlink that points to the snapshot (we already have 2.2.x and 2.1.x). When we GA, we could change it to point to the 3.0.0.RELEASE.

However, I talked to @cbeams and for various reasons we want to get away from symlinks,

But I have another trick - https://github.com/garyrussell/spring-integration/commit/7f89ff699ae7170b3f89a4a6af933dc9d3c3590a