[Bugs] #703 UNSP: Support evince binding w/o document_links support

[SugarLabs Bugs]

#703: Support evince binding w/o document_links support
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    Reporter:  alsroot                    |          Owner:  morgs   
        Type:  defect                     |         Status:  new     
    Priority:  Unspecified by Maintainer  |      Milestone:  0.84    
   Component:  Read                       |        Version:  0.84.x  
    Severity:  Blocker                    |     Resolution:          
    Keywords:  r?                         |   Distribution:  Mandriva
Status_field:  Unconfirmed                |  
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Comment(by alsroot):

 I've attached new patch with hasattr() instead of try..except

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Ticket URL: <http://dev.sugarlabs.org/ticket/703#comment:3>
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