removed slug from ReportEditForm
fixed aggregate value retrieval from object
fixed lower case sorting
added logic to deal with multi-value display fields in result rows
fixed multi-value display logic for case = aggregate; truncated large results
forgot to set preview length back to 50 after testing
fixed property filter
went back to using values_list for base query in order to deal with multiple relations
added support for excluding property filter values
fixed edit report display field position value
fixed DisplayField.total form input
remove display totals row if no display totals
made default field name verbose for more human readable headers
fixed filter fields for default humanized field names
implemented select boxes for filter field choice fields on saved reports; started ajax logic to add choice fields while creating report
Merge branch 'master' of https://github.com/SacNaturalFoods/django-report-builder

Conflicts:
	report_builder/views.py