v1.4 Update

• Fix bug where healing would get stuck if you removed the healing input on controller.
• Fix bug where game would be unresponsive if you paused the game right after dying.
• Add app icon.

This patch is the same as v1.3 but without the Steam achievements re-sending fix. v1.3 was causing a crash so I reverted it. I'm still trying to find a workaround to re-trigger previously failed Steam achievements.