upport custom_query parameter in the result method of the Collection behavior. This allows for run time customization of the stored query, e.g. by request parameters.
add comment describing the need for this version dep
plone.app.querystring has a release
merge with master
Merge branch 'master' into thet-custom_query

Conflicts:
	docs/CHANGES.rst
Merge branch 'thet-custom_query'