Variables should have unique IDs now
Merge commit '819cef3471e30e8fa30a6e3d243b6d91cdf2abef'
Squashed 'src/lib/JS-Algebra/' changes from dc1fe51..ad714cd

ad714cd added new equation methods

git-subtree-dir: src/lib/JS-Algebra
git-subtree-split: ad714cda822e391ec69a076bdc31305f4d54fc40
attempting to hide IDs of variables
Squashed 'src/lib/JS-Algebra/' changes from ad714cd..007e69e

007e69e MathML export changes

git-subtree-dir: src/lib/JS-Algebra
git-subtree-split: 007e69e06d16ec47064fdc0a3aaaeab6ae63e577
Merge commit '780e32a277efef36ef4465b1b03996c214b17915'