Bug fix for story #57824836 "Cannot consistently raise exception in JS adapter"

Fix is supposed to resolve issues when Rho.callbackHander got broken Json object (no quotes around message/attributes keys, extra ",") :
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I 11/12/2013 14:14:13:807 046ffa28       SimpleMainView| Executing JS: Rho.callbackHandler( "__rhoID#2", {"result":{"cumulative_count":"0","error_code":"8","error_message":"","processed_count":"11","source_id":"1","source_name":"Report","status":"error","sync_type":"incremental","total_count":"11","server_errors":{"update-error":{"q7FghZJpE4":{message:"Error Updating Record: object not found for update",,attributes:{"pass":"false"}}},"update-rollback":{"q7FghZJpE4":{attributes:{"name":"The Lollock Report","pass":"true","ispublic":"true","author":"kjl","reportid":"149795811704001"}}}}}},"")
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