1. Allow uuids to be used to specify reservations, change pretty much
   everything in the web interface to use uuid's so we stop exporting
   databases indexes to the client side.

2. Change RPC path to return a blob of data when approving a
   reservation. Ditto for initial creation, so that we can see precisely
   what the local cluster has done.

3. When a reservation is created/approved, insert an announcement in the
   announce system for that user, set to go off 24 hours ahead of
   reservation. Update that announcement when reservation is modified.