CHG: collection_download.php now allows for customizations.

* Added hook to specify the target extension.
* Added hook to replace the file to be downloaded.
* Moved some functionality that was duplicated into functions.
* The '(5 of 5 available)' text now only appears if not all resources
  are available.


git-svn-id: http://svn.montala.net/svn/resourcespace@4982 c08608d7-6e46-0410-86ca-f2a6f1370df5
CHG: format_chooser now also supports collection_download.php

* You can now choose the target size as well as the target file format
  that will be used for all files in the collection.


git-svn-id: http://svn.montala.net/svn/resourcespace@4983 c08608d7-6e46-0410-86ca-f2a6f1370df5
BUG/ADD - License Manager plugin: Fixed missing translation functionality. Corrected two phrases. Added a Swedish language file (complete).


git-svn-id: http://svn.montala.net/svn/resourcespace@4984 c08608d7-6e46-0410-86ca-f2a6f1370df5