New Features

Updated PlexAPI requirement to 4.5.1 (requirements will need to be reinstalled)
Closes #27, Closes #78 - Completely rebuilt plex_search see here for more details.
Closes #136 - Added a new ability to edit show's advanced details

Bug Fixes

Fixes #126 - tmdb_discover date format bug
Fixes #132 - content_rating filter bug
Fixes #133 - trakt_trending key bug
Fixes #135 - file_background bug