Updated scripts to use add_threading_args from khmer_args
Removed khmer/threading_args.py as it is now depreicated and irrelephant.
Spacing fix
Updated changelog
Chanelog formatting
Updated scripts to use add_threading_args from khmer_args
Removed khmer/threading_args.py as it is now depreicated and irrelephant.
Spacing fix
Updated changelog
Chanelog formatting
Resolved some merge conflicts

Conflicts:
	scripts/do-partition.py
	scripts/load-into-counting.py
Resolved missed merge conflicts. Updated formatting. Made mental notes.
Merge pull request #653 from ged-lab/scripts/threadargs

Updated scripts to use add_threading_args from khmer_args (issue #383)