LP#1269911 composite attributes admin UI

LP#1269911 composite attributes admin UI

New interface for managing composite record attribute definitions:

/eg/conify/global/config/composite_attr_entry_definition/<id>

The UI for a coded value map is accessed from an existing coded value
via a new "Manage" link column in the CCVM table.  The UI allows staff
to build tree-shaped boolean composite definitions for CCVMs in terms
of existing CCVMs.

Additionally, the record attribute definition UI now has a link from
each definition to the coded value map page for the attribute.

Signed-off-by: Bill Erickson <berick@esilibrary.com>
Signed-off-by: Mike Rylander <mrylander@gmail.com>
Signed-off-by: Dan Wells <dbw2@calvin.edu>