objectmodified event caused schemaextender product to die on site creation
Remove broken queries interfaces
Add QueryFolder
add QueryField and QueryWidget

modified to allow multiple catalogs
Merge branch '3.01a' of github.com:bikalabs/Bika-LIMS into 3.01a
Add Query, QueryWidget, and associated indexes and configuration

Add missing index code
Clean and fix QueryWidget
Merge branch '3.01a' of github.com:bikalabs/Bika-LIMS into 3.01a

Conflicts:
	bika/lims/profiles/default/jsregistry.xml
	bika/lims/profiles/default/metadata.xml
	bika/lims/upgrade/configure.zcml
	bika/lims/upgrade/to1122.py
Add ISampleType marker interface for extension
Merge branch '3.01a' of github.com:bikalabs/Bika-LIMS into 3.01a