Popcorn Time v0.5.2-pre.1

Pre-release build for testing the movie and TV-series fixes.

Included:

• Torrentio movie fallback and playback file selection.
• Trakt-backed TV-series catalog and metadata fallback.
• Torrentio episode source fallback and playback metadata propagation.

Known limitation:

• Anime catalog/detail/source fallback is not fixed in this pre-release.