First commit of sorting using WQ.

- This sorts records by partitioning the input file and running sort on
  each piece.
- The merging of the sorted pieces is done at the master and the sorted
  records are printed to an output file.
- It takes two arguments:
	1. first argument is the path to the sort program to use
	2. second argument is the path to the input file

  Example:
	./wq_sort /usr/bin/sort input.txt
Adds script to submit workers to SLURM
Fix bashisms from ec2_*_workers
Added resource monitor to doc index.
Normal size fonts.
Changes to makeflow manual per Dinesh
Wraps monitor with category.

Also, move codes around so that the wrapping for the monitor and batch
options get the same scope.