Add the resources.py script to analyze our OpenStack resource usage.

	new file:   scripts/resources.py
Add CLI script for adding ldap users to Atmosphere.

Remove broken import script for core services. The new script provides more flexibility.
	deleted:    import_core_services.py
	new file:   import_ldap.users.py
Merge branch 'herja' of github.com:iPlantCollaborativeOpenSource/atmosphere into herja