Auto Units - cool OpenSCAD library

Does it annoy you that you can't type in any value you want as a customizer variable?
For instance:
1in
3cm
1 1/2in
... etc

Well, now you can!

For more information, including a rundown on how the code works, check out my projects blog, here:
https://theheadlesssourceman.wordpress.com/2017/07/06/auto-units-cool-openscad-library/