This commit changed the name of the package zonescoped to regionscoped. The name change is okay but the zonescoped should have been properly deprecated. As it is, it appears to have just been deleted and users have no chance to know how to upgrade.
Please return the zonescoped package and add deprecation messages pointing to the domain objects in the regionscoped package. The zonescoped package can be removed in jclouds 2.1.0.