Updated to jQuery 2.0.3, also switched to the minified version in the main HTML file.
Updated to latest lodash, switched to minified version, removed unused files.
Latest version (minified and normal) for lodash.
Initial port of counts-to-mass-number problem.  Not quite done yet.
Added code to display charge differently from other numerical values, fixed some issues with displaying the correct answer.
Changed terminology from "atomic mass" to "mass number" everywhere in the sim.  This term is more accurate.
Fixed some comments.
add local copy of new ResetAllButton and associated images
Fixed dates (had used 2014 for a bunch of them).
Merged in performance enhancements done by Jonathan Olson.  Also modified nucleus layering algorithm for better efficiency.
Formatting changes.
Removed some debug printouts.
Made the show stable/unstable label control off be default, and made it also affect the nucleus animation.
Updated icon images for first two tabs so that they look reasonable on IE10.
Made the periodic table slightly larger so that all the boxes end up being the same size.
Updated to version 0.0.0-16
Added code to possibly prevent a particle's position from being set to a non-vector value. Also removed some console logging, replacing most of it with asserts.
Ported the SchematicToChargeProblem.
Ported the schematic-to-mass-number problem.
Added missing lib.