tree d851b9c5a097efec64d1d91444c68803e0d6f1a5
parent 442a069105549a824d2ad5f38a9d0608fbf5b4b1
author Andreya Piplica <apiplica@carnegielearning.com> 1443653589 -0400
committer Karl Schaefer <karlgschaefer@gmail.com> 1471292204 -0400

Move isStyleBlock to Node

Move isStyleBlock function from MathCommand to Node. Like isEmpty, all
tree elements should inherit this from Node, not just MathCommands.