improve timeline report on stacked media
fix: video overlays are missing...

Bug was introduced with latest changes to push getMetadata() out of
willStartPlaying(). Variable “url” was missing since…
This broke willStartPlaying() when playing subtitles.
Fix always on clock bug. Start clocks as hidden.
Quick options to remove Playlists & Shared Librarys

Quick and dirty option to remove Playlists and Shared Librarys from the
Nav Bar for people who have no use for them. Can be found under
Settings->Top Level Options and will require exiting out of PlexConnect
to the main aTV menu to take effect.
Add option to remove On Deck sections
proxy ATVSettings to std+SSL WebServer/XMLConvert

- move responsibility for ATVSettings to PlexConnect.py main code
- align WebServer/SSL Webserver to equally serve requests
- see
https://forums.plex.tv/index.php/topic/120584-plexconnect-on-atv-70-gm-i
os-80-gm/?p=723474 for the principal structure
playlist without signing in // added log details
prevent early termination of ATVSettings proxy
test