[Bugs] #1651 UNSP: simplify jarabe.journal.model._Cache

[Sugar Labs Bugs]

#1651: simplify jarabe.journal.model._Cache
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    Reporter:  sascha_silbe               |          Owner:  sascha_silbe               
        Type:  enhancement                |         Status:  new                        
    Priority:  Unspecified by Maintainer  |      Milestone:  Unspecified by Release Team
   Component:  journal                    |        Version:  Git as of bugdate          
    Severity:  Unspecified                |       Keywords:  r?                         
Distribution:  Unspecified                |   Status_field:  Assigned                   
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Changes (by tomeu):

 * cc: alsroot (added)
  * component:  sugar => journal


Comment:

 Aleksey is the Journal maintainer.

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Ticket URL: <http://bugs.sugarlabs.org/ticket/1651#comment:1>
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