Check if the user already is allowed to used the resource before adding it to the relation (fix problem adding duplicated user exception)
Remove support for adding resources using template links
Improve tests around the component publish service
Fix problem publishing workspaces
Improve offering description style
Improve the code for uploading resources to WStore
Improved marketplace creation tests.

Now those tests includes some admin operations related to the creation
of marketplaces for other users.
Remove unused code