Minor update 12

Turns out that custom key bindings where not working with lot of keys. Here is small update fixing that. Thanks for pointing out this issue. I was too accustomed to my default key bindings that i rarely tested other ones. If you find any other bugs, let me know and i try my best to fix them :)

• Fixed some keys not working when using custom controls (Key bindings are now saved in their numerical value instead of string)
• Fixed custom arrow keys not working on some menus
• Space is no longer hard coded to jump (Space is still alternative jump if its not being used elsewhere)
• Controls are reseted to default if old type save file is being used
• Fixed some variations of metro doors appearing in wrong location
• Added "Press E to enter" to metro doors