Fixed broken layout for anime black and whitelist
Fix next backlog date in API / altered display of next backlog date in UI
Added request headers param.
Added request headers param.

A recent update/change in RSS cache removed the cookies for custom RSS provider. This re-adds it.
Merge pull request #622 from nielsenj/fixrsscookies

Fixrsscookies
Merge pull request #621 from rawsonm88/fix/backlog_scheduler

Fix next backlog date
Merge pull request #618 from Anthirian/anime-blackwhitelist-fixes

Fixed broken layout for anime black and whitelist
Fixed "show must be added to list", regexes now check if numbers following after the series name is a date or part of the series name to properly parse and return correct show object.

Fixes TVDB and TVRAGE cache_location variable.
Maintenance tasks are no longer blocking startup.

Scene exceptions now perform a lastRefresh check so they don't constantly update for no reason.
Merge remote-tracking branch 'origin/dev'