store plugin instances in class vars
mixin benefits
more mixin benefits
load from url (copied from ckanext-recombinant)
improve scheming show
load_things mostly copied from ckanext-canada
workers.py and stats.py from ckanext-canada
fix imports and syntax
fixes for basic working load-organizations
fix org extra loading
show record number being processed first on line
factor out common group+org methods
fix to plugin MRO (multiple inheritance blues)