Added template for handle batch files
Fixed some of the debug messages, which were trying to display a dataset's
global_id before it had been defined.
In preparation for adding dataset handle creation, created a new config
variable General.handles for the http://hdl.handle.net/UTSID/ part,
and two variables Redbox.staffhandle and Redbox.datasethandle for the
namespaces we're putting in front of the hashes.  So the complete handle
for a staff id is now General.handles + Redbox.staffhandle + HASH.
Fixed tests and classes to handle this.
Issue #10
When harvesting datasets, Coataglue now creates a handle for each (by hashing
the dataset's global_id) and writes out a file which can be processed to add
the handle to the server.  This is a workaround because handle curation in
ReDBox is flaky as hell.