Don't return just 1 item, add more at end
Merge pull request #21 from guardianproject/npex_media_tags

Don't return just 1 item, add more at end
Added "ignore tags" functionality to query
Merge pull request #22 from guardianproject/npex_media_tags

Added "ignore tags" functionality to query
Merge branch 'master' into experimental_media_management
Added sync_frequency_defaul InBackground
Default syncfrequency
Better background media download handling