Release 0.1.5

I got on the habit of cloning 5 stages every time I sat down at the keyboard to get warmed up and get my head into gear, and ended up finishing all the first 50 stages this week! They do however need a lot of balance testing.  I have to go around to the stages with metal blocks and "flow arrows" especially, these are the ones where the balls get channeled down tunnels.  

If I just use the default values the balls do a lot of weird things, so what I need to do is go to the blocks in the problem areas and set the damping values to lower / higher where necessary.   I might do a live stream today while I test.  If anyone ends up reading these feel free to test along with me and report anything you think needs tweaking / changing.   Will be spending tomorrow working on my weekly video devlog.

Have fun!