Add back sl licence (doesn't work without it).

dspace/config/licenses/alternative_sl.license

@@ -0,0 +1,29 @@
+
+NON-EXCLUSIVE DISTRIBUTION LICENSE (Slovenian)
+
+By signing and submitting this license, you (the author(s) or copyright owner) grants to Slovenian language
+resource repository CLARIN.SI (CLARIN.SI) the non-exclusive right to reproduce, translate (as defined below),
+and/or distribute your submission (including the abstract) worldwide in print and electronic format and in
+any medium, including but not limited to audio or video.
+
+You agree that CLARIN.SI may, without changing the content, translate the submission to any medium or format
+for the purpose of preservation, and that CLARIN.SI may keep more than one copy of this submission for purposes
+of security, back-up and preservation. You also agree that small changes to the metadata in well defined
+circumstances (i.e. typos, unifying keywords) can be made by the repository editors even after the item
+has been published.
+
+You represent that the submission is your original work, and that you have the right to grant the rights
+contained in this license. You also represent that your submission does not, to the best of your knowledge,
+infringe upon anyone's copyright.
+
+If the submission contains material for which you do not hold copyright, you represent that you have obtained
+the unrestricted permission of the copyright owner to grant CLARIN.SI the rights required by this license, and
+that such third-party owned material is clearly identified and acknowledged within the text or content of the
+submission.
+
+IF THE SUBMISSION IS BASED UPON WORK THAT HAS BEEN SPONSORED OR SUPPORTED BY AN
+AGENCY OR ORGANIZATION OTHER THAN CLARIN.SI, YOU REPRESENT THAT YOU HAVE FULFILLED
+ANY RIGHT OF REVIEW OR OTHER OBLIGATIONS REQUIRED BY SUCH CONTRACT OR AGREEMENT. 
+
+CLARIN.SI will clearly identify your name(s) as the author(s) or owner(s) of the submission, and will not make
+any alteration, other than as allowed by this license, to your submission.