Some more fixes

Changes in Version... I lost track, sorry. Originally I intended to "just put out a quick patch with the updated version of my framework" but it turns out 7 years of compiler progress and knowledge gain expose some issues that should have been fixed from the start.

• limited visible area on HD+ resolutions
• Fixed rare random render glitches due to 3D API state caching
• Fixed rare fullscreen colored rectangles after loading a savegame
• Fixed rare fullscreen colored rectangles due to a different reason
• Fixed rare issue where deco objects being invisible after loading a savegame

This is the last update. Really now. Echt jetzt.