Update for Oct 4

Thanks to everyone who reported problems with the menus. This patch fixes the input issues some players ran into.

Fixes

• Menus no longer become unresponsive on some setups. Switching between mouse & keyboard and controller is now much more reliable. Slightly noisy controllers, racing wheels, flight sticks or drifting thumbsticks no longer hide the mouse cursor or steal menu focus.
• Controller navigation in the main menu has been fixed. Up and down now move through the menu as expected.
• Fixed the game sometimes skipping the "Press any key" screen on its own when certain controllers were connected.
• Fixed the cursor briefly jumping to the center of the screen when moving between menus.
• Setting a volume slider all the way down now properly mutes that sound.

Improvements

• Quitting now asks for confirmation. Press Exit, then press it again ("Really quit?") to leave the game, so a stray click or button press won't close it.
• Unplugging your controller now switches the game back to mouse & keyboard.
• Arrow keys / WASD can now be used to navigate menus.
• The frame rate is now capped with V-Sync, so the GPU no longer runs at full load in menus.