Fix workspace deletion

- use fixed version of atlas
- fix read of vsid param
- end requests in WorkspaceResource properly

Also uses snapshot versions of cartographer and galley, which should use the same atlas version (I guess there are not worth a separate PRs).
Without the requests ending client waited for response forever.

The fix is intended to allow re-use of a wsid when deleted (i.e. use a workspace, delete it and then use workspace with the same wsid), but I still get org.apache.lucene.store.LockObtainFailedException even with this, but before this commit it behaved much worse :-)