Zoom not saved/respected unless ultra-high magnification

[jyasutin]

With the 4.1.0 release zoom settings are no longer saved/respected unless the zoom is ultra-high (approximately 3 to 5 squares across on my phone). If my puzzle is at or near maximum magnification then when I exit and re-enter the puzzle, it will be at the same magnification. If my zoom is at any lower setting then every time I exit and re-enter a puzzle the zoom will be "fit to screen", which is often unusable on large puzzles on phones.

[kebernet]

Thanks. Honestly, I took a patch from someone somewhere around the 3.0 line that changed how this worked and I think in the 4.0 line I broke it when I made the zoom math work the way it is "supposed" to work -- that is, there is a base box size of 0.25 inches on any display size and you can zoom up or down 50% from that. There is likely a scale bounds check happening somewhere that I missed.

Will get to this.