Fix sop number error

ckanext/dgu/controllers/package.py

 # -*- encoding: utf-8 -*-
+import exceptions
 import re
 import urllib2
 from urllib import urlencode
@@ -266,6 +267,8 @@ class PackageController(ckan.controllers.package.PackageController):
                 if title.find('\n') > 0:
                     title = title[0:title.find('\n')].strip()
                 return '{"name": "'+ title + '" , "url": "' + (PISRS_URL + id)+'"}'
+        except exceptions.UnicodeError:
+            return '{"name": "Vnos ni v pravilnem formatu." , "url":""}'
         except URLError:
             return '{"name": "Napaka pri poizvedbi SOP" , "url":' + (PISRS_URL + id) + '"}'
         return '{"name": "Predpis s tem SOP ni bil najden" , "url": "' + (PISRS_URL + id) + '"}'