Version 3.1.1-stable
    
    - Adds dependency on system mbedtls and miniupnpc
    - Removes dependency on openssl
    - Bundles libwebsockets, can't build against system one for now
    - Bundles tinyexr, not packaged (and likely not relevant to package)
    - Rename -server build to -headless, add an actual server runtime package
    - Build with LTO, improves performance a lot (but slow linking)
    - Adds MIME type for .godot project files