[Bugs] #1098 UNSP: Fix .xoj support

[SugarLabs Bugs]

#1098: Fix .xoj support
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    Reporter:  alsroot                    |          Owner:  tomeu                      
        Type:  defect                     |         Status:  new                        
    Priority:  Unspecified by Maintainer  |      Milestone:  Unspecified by Release Team
   Component:  sugar                      |        Version:  0.84.x                     
    Severity:  Unspecified                |       Keywords:                             
Distribution:  Unspecified                |   Status_field:  Unconfirmed                
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 At present sugar fails on uploading .xoj to Journal

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Ticket URL: <http://dev.sugarlabs.org/ticket/1098>
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