- don't create result records for uploads and downloads.
Just create a msg_to_client record.
- the scheduler handles file-transfer results specially;
it makes a vector of them, then calls a project-supplied function
handle_file_xfer_results()
- change the interface and implementation of put_file and get_file
- client write project sched priority in GUI RPC replies,
but not to the state file
svn path=/trunk/boinc/; revision=23857
David Anderson