Journal multiselection try3

This pull request have the following changes:
* Only include the patches related to the feature. Other patches, with Journal fixes will be sent later.
* Fixed the points commented in try2
* The patch "Add to the listmodel the columns needed for multiselection operations" remove the use of the metadata, doing simpler the next two patches.
* The class CopyMenuBuilder is implemented in the patch "Use the menu as defined in Copy menu in the detail view toolbar", is cleaner.
* Now do not include a option "Clipboard" in the menu to do batch copies, because does not add much value for the user.