Mapping Tool to support Nested Namespace Mapping. Current 0.9.1 Mapping tool won't work with the new 0.9.2 engine.

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Issue dump from jira
$VAR1 = {
          'priority' => '3',
          'customFieldValues' => [],
          'project' => 'PENROSE',
          'status' => '6',
          'components' => [
                            {
                              'name' => 'Studio',
                              'id' => '10010'
                            }
                          ],
          'reporter' => 'jimyang',
          'key' => 'PENROSE-42',
          'assignee' => 'jimyang',
          'summary' => 'Mapping Tool to support Nested Namespace Mapping',
          'id' => '10169',
          'updated' => '2005-07-26 09:37:29.0',
          'votes' => '0',
          'fixVersions' => [
                           {
                             'releaseDate' => '2005-07-26 00:00:00.0',
                             'sequence' => '3',
                             'name' => 'Penrose-0.9.3',
                             'released' => 'true',
                             'id' => '10020',
                             'archived' => 'false'
                           }
                         ],
          'description' => 'Mapping Tool to support Nested Namespace Mapping. Current 0.9.1 Mapping tool won't work with the new 0.9.2 engine.',
          'affectsVersions' => [
                               {
                                 'releaseDate' => '2005-07-06 00:00:00.0',
                                 'sequence' => '2',
                                 'name' => 'Penrose-0.9.2',
                                 'released' => 'true',
                                 'id' => '10005',
                                 'archived' => 'false'
                               }
                             ],
          'created' => '2005-07-07 16:59:59.0',
          'resolution' => '1',
          'type' => '2',
          'duedate' => '2005-07-12 00:00:00.0'
        };


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