xREL.v3

New features:
- Prepared for Road To Gehenna DLC.
- Added experimental support for SteamVR. To enable it, right click on The Talos Principle in your Steam Library, then click on Properties / Set Launch Options, and add the following parameter: +vr 1
- Added support for the newest ATI GPUs.

Gameplay/visual improvements:
- Improved behavior of wide plasma walls: players will no longer be pushed to the original point of entry, and touch effects should sound more natural.
- Improved the appearance of soft shadows on vegetation.
- Added support for viewer-facing cloud particles, which should look more natural.
- Deliberate glitching will no longer occur while player is using a terminal.

Bug fixes:
- Fixed several cases where connectors would lose their connections when using time recorder.
- Fixed SSAO artifacts on certain resolutions and buffer scales.
- Fixed an issue causing some crumbs to be rendered black (e.g. black grass).
- Fixed artifacts along object edges lit by fast lights when using MSAA.
- Shader caching and texture loading progress screen will now render correctly on triple screen setups.
- Improved translations for several languages.

Optimizations:
- Major overhaul of crumbs rendering. There should be a noticable increase in performance on lower-end PCs.
- Optimized visibility system for distant lights, which improves performance on lower-end CPUs.
- Improved performance of plasma wall rendering on ATI cards.