a failed attempt to use multiprocessing
convert multiprocessing code to subprocess
fix load overwriting bug and clean up output
load-datasets: fix for max_count parameter
load-datasets: fix crash on last datasets imported
Merge branch 'multiprocess-load-datasets'

Conflicts:
	ckanext/canada/commands.py
Merge pull request #84 from wardi/master

Multiprocess version of load-datasets command