Specify an Ivy resolver with ", descriptorOptional" to make Ivy
descriptor files optional for that repository or with
", skipConsistencyCheck" to disable Ivy consistency checks for
that repository.
This checks to see if the new `crossVersionedValue` is actually implemented
by an AppID and delegates to the deprecated `crossVersioned` method if
there are any issues. This preserves the binary compatibility from
folks using Launcher interface pre-0.13 and post-0.13.