Changes

There are only 2 scanners right now.  The Mineral Scanner has a range of 500m, and will activate whenever you 'target' an asteroid. There is no need to 'fire' it, flash the green light, etc. If you are going very fast, it will 'lag', as it only updates itself once every 5 seconds or so. The Advanced Mineral Scanner is exactly the same as the Mineral Scanner except that it has improved range of 750m. It is available only after completing 120 prospecting missions. The prototype Improved Mineral Scanner is available after completing several newbie manufacturing missions.