Linear modes in Standard Mode + EMM386 fix release

This release finally allows the use of linear modes and double buffering in Standard Mode when using a memory manager such as EMM386! Not only that, loading this driver with a linear mode also fixes any other drivers you may load (e.g. the HD Audio driver) that suffered from the same limitation!

This release also fixes SeaBIOS detection being broken in release builds, which would have resulted in, e.g., text not being written correctly in windowed DOS prompts on Win98 under QEMU.