Remove the now defunct boxcar notifier.
Added support for the new append method from NZBGet 13+

Based on PR-851 by Prinz23
Merge branch 'PR-852_remove_boxcar_notifier' into development

* PR-852_remove_boxcar_notifier:  closes gh-852
  Remove the now defunct boxcar notifier.
Merge branch 'PR-851_add_nzbget13_support' into development

* PR-851_add_nzbget13_support:
  Added support for the new append method from NZBGet 13+
  based on PR-851 by Prinz23
Change download stats 'back'

Don't show download and snatched as split values on home progress bar
Include never aired but downloaded in counts

Count aired never downloaded/ snatched stats
Change initial search run delay times to lower values
Merge branch 'change_download_stats' into development

* change_download_stats:
  Change download stats 'back'
Merge branch 'change_initial_search_run_delay_time' into development

* change_initial_search_run_delay_time:
  Change initial search run delay times to lower values
Add some popular newznab favicons, show name of provider in history so one can filter/sort by it.
Added some comments (taken from midgetspy in another branch), fixed missed file for attr->prop for jquery 1.9.x.
Add support to show defunct providers images on history page.
Merge branch 'PR-853_provider_images' into development

* PR-853_provider_images:  closes gh-853
  Add support to show defunct providers images on history page.
  Add some popular newznab favicons, show name of provider in history so one can filter/sort by it.
Merge branch 'PR-854_minor_js_tweaks' into development

* PR-854_minor_js_tweaks:  closes gh-854
  Added some comments (taken from midgetspy in another branch),
  fixed missed file for attr->prop for jquery 1.9.x.
Merge remote-tracking branch 'upstream/development' into development