We'll need to be careful about the 0.1.0-SANDBOX memsql. It currently depends on 0.6.0-rc.2, so building 0.6.x (which is brooklyn 0.6.0-SNAPSHOT) will result in it pulling in another version of brooklyn! Perhaps it should have an excludes for `brooklyn-all`? But then we'd probably miss some of its transitive dependencies for brooklyn-software-nosql etc?