twitter/commons — pull request #22 by benjyw (2012-03-29 22:50:40+00:00)
Title: Make the results of IvyResolve target-dependent

Previously the classpath file was always the latest one computed, even
if you then start working on a different target whose BUILD files
haven't change (and therefore won't trigger a new resolve).

This change qualifies each classpath file with (a hash of the ids of)
the targets it was generated from, and the main classpath file is now
a symlink to the appropriate one.