Add support for Italian localization
Fixed error in database prepopulation caused by missing users.csv file
Add additional fields to the shelter module
Limit person and group registration to only one shelter
Add shelter group link table
Merge branch 'EVASS' of https://github.com/oidualc/eden into evass

Conflicts:
	private/templates/EVASS/gis_hierarchy.csv
	private/templates/EVASS/tasks.cfg
	private/templates/locations/IT_L1.csv