Fix KeyError exception when XBMC library is empty

+ change update_library logging
fix changing status in manage_episodeStatuses.tmpl
Merge pull request #695 from itofzo/fix_xbmc_KeyError_empty_library_dev

Fix KeyError exception when XBMC library is empty
Merge pull request #700 from itofzo/fix_manage_episodeStatuses_dev

Fix changing status in manage_episodeStatuses.tmpl