Requirments Update

Updated PlexAPI requirement to 4.5.2 (requirements will need to be reinstalled)

New Features

Closes #155 - adds added, added.not, originally_available, and originally_available.not plex_searches which take an integer and represent in the last and not in the last
Closes #167 - Can now edit Movies advance options
Closes #173 - IMDb Keyword searches are now allowed

Bug Fixes

Small fix for filters
Updated Metadata template file