v0.0.27-beta

What's Changed

• fix empty BSP node flag
• add checkpoint generation from lev
• fix checkpoint paths crashing when adding side paths
• fix quadblocks being deleted when using the renderer
• save window size setting
• Fix stbi memory leak @TheUbMunster
• fix requested image channels bug @TheUbMunster
• fix triblock uv mapping bug @TheUbMunster
• fix incorrect texture index in renderer @TheUbMunster
• Possible fix for checkpoint overflow by @jorozcove in #17
• Fix various bugs by @TheUbMunster in #18

Full Changelog: v0.0.26-beta...v0.0.27-beta