Build 1.75 fixes and improvements — URG Steam update #1601994

- The latest version includes many small improvements, such as many new sound effects and more information about the weapons. - The most important bug fix is that the ship configuration screen used to show up twice before some levels - this has now been fixed. - There are now sound and visual effects when the ship hits a wall - You now get coin rewards for breaking down those small asteroids. I noticed from gameplay videos posted on YouTube that many of you like to blast those, so I figured it should be rewarded! - Some people seem to be stuck on the very first level, so I added an arrow pointing at the lever you need to either shoot or hit with your ship to open the door.