BUG 0000 Support for php 5.2 in Solr implementation

Add support for php 5.2 in Solr implementation:
- Exception function has two parameters
- use of function call_user_func

workflow/engine/classes/class.searchIndex.php

@@ -235,7 +235,7 @@ Class BpmnEngine_Services_SearchIndex
         G::LoadClass('solr');
         
         $solr = new BpmnEngine_SearchIndexAccess_Solr($this->solrIsEnabled, $this->solrHost);
-    
+        
         //create list of facets
         $solr->updateDocument($solrUpdateDocumentEntity);
     }