switched to truncation mode
fixed bug whereby wrong area being tested for
Normailzed helers for locating/id'ing model instances

model_id added to World for use in converting model + name to an id.
It encapsulates all Model.find_by_XXXXX operations.

Added helpers for rational generation of ids for model instances with html.
See model_element_id and model_array_element_id in helpers/application_helper.rb

Added normalize_model_name which Does the Right Thing for taking a model
name and making it useful for id. It does the usual downcase stuff but it
also makes all XXXXXOrganization look like "organization".