Plus42 Equations, Preview Release

[johanw]

I see no reason not to do both. The Android abi code can apparently seamlessly build for 32 and 64 bit (Google won't let you in Google Play if you only deliver a 32 bit version so it will have to do that), I see no reason why we can't have a Plus42 (and Free42) 64 and 32 version. Maybe it will be easier for the decimal version, I'm not sure, but is the decimal version used that often anyway?