Add ability to configure the exported report file name for summary and set exports. Mapplethorpe requested set report title to be the set name and object summary exports to start with the identifier.
Implemented configurable download names for sets and summaries. New app.conf options allow you to use display templates for names:
ca_sets_export_file_naming is used for set exports
<table>_summary_file_naming directives are used for naming summaries. (Ex. ca_objects.summary_file_naming)