Switched to using youtube video trailers instead of the native plex t…

…railers for consistency with other UMC-compatible integrations

Added video trailer attribute for video trailer playback in UMC

Release version 0.4.6

Release version 0.4.5

Updated manifest to version 0.4.4

Correct manifest.json to version 0.4.3

Update manifest.json version

Added https support. Added summary attribute

Merge pull request #71 from mkanet/master

Updated manifest file with corrections to prevent HACS validation errors

Merge pull request #66 from mkanet/master

Updated manifest.json with new version to reflect recent changes