Merge pull request #186 from btovar/foreman-reporting

Commits from Ben and DeVonte include:
1. Clean up the printing of the master-foreman-worker relationships in work_queue_status.
2. Foreman's local disk information is reported to the catalog/master. (the cores and memory is still reported as the aggregate of its workers).
3. Foreman reports cores and memory as 0 in its ready message to master.
4. Fix bug where the disk space of foreman's sandbox was not being used.
Renames local_resources to aggregated_resources.

Also, renames:

work_queue_get_resources to work_queue_aggregate_resources,
work_queue_resources_measure to work_queue_resources_measure_locally.

The motivation is to make the code more readable when dealing with
resources from workers and foremen.
Adds submit_workers common code
condor_submit_workers with common script
sge_submit_workers with common script
torque_submit_workers with common script