Added some more type conversion mappings to akara.conf.template
More updates to type mappings in akara.conf.template
Fixed missing comma in akara.conf.template
Added check of freetext/physicalDescription

Modified edan_to_dpla module's transform_type() to check
freetext/physicalDescription before the object type fields.
If it is filled in with anything useful for determining types,
it's usually the most specific.