Version 0.1.1.0: Added support for significant figures. Results can now be returned in the original JavaScript result to the 21st decimal or rounded to the appropriate number of significant figures. Added support for calculating perimeters and surface areas for all applicable shapes supported in v.0.1.0.0. Slight aesthetic modification to area-volume-calculator.html and area-volume-calculator.css.
Finalized deletion of obsolete sigfigs.js file from local branch.