Applied coding standards to Citation Exporter module.
Applied coding standards to scholar embargo module.
Updated all the importer modules to follow Drupal Coding standards.
Handle when "Content-Type" is lower case.
Use the "temporary://" stream wrapper as "temp://" is not defined.
Unlink the files by name, file_delete() expects file objects.
Handle notice when the given object's MODS does not contain an ISSN.
Added DS-COMPOSITE-MODEL
Use a hook for getting the user to notify.

It was half implemented and the POLICY datastream wasn't getting
updated correctly as a consequence.