atmire-1584:update doi after item archived,Further corrections to versioning and DOI's
update ispartof in the datafile when archive
Use canonical value to generate new version doi
make the version number on data files go up no mater it is changed or not
Update submit_datapackage_archive
Add cover images for DEZ
Display cover for DEZ data packages
Theme changes for metadata propagation button

Renders on edit metadata page from forms.xsl
Makes a javascript function call DryadPropagateMetadata
Implement DryadPropagateMetadata javascript

Shows /admin/propagate-metadata as new browser window
Initial implementation of transformer/form for propagate-metadata
Set framing to popup, fix POST url
Add name and values to checkbox
Install transformer for PropagateItemMetadataForm
Add i18n messages for Propagate metadata
Changes to Form/sitemap for POST vars
Remove transform parameters, verify eperson login
Use request.getParameters instead of parameters

Also some code cleanup
Initial PropagateItemMetadataAction
Change checkbox name to dataFiles[]
Implementation of PropagateItemMetadataAction