VERSION 1.1

Yeah so I added that multiplayer support, it wasn't that hard, but it feels kinda sketchy so tell me if you find any bugs or something. 

Also changed:

• Planes now crash when they die, damaging anything near them
• Interception missiles have a way bigger range so they are actually effective against nuclear missiles
• Added online multiplayer mode
• Made mines ignore friendly units as they should
• Increased range of fortifications
• Increased heavy bombers health slightly