Add needed directories
Add needed directories

Khan/MathJax-dev,dpvc/MathJax-dev,dpvc/MathJax-dev,dpvc/MathJax-dev,Khan/MathJax-dev,Khan/MathJax-dev,dpvc/MathJax-dev,Khan/MathJax-dev,Khan/MathJax-dev,Khan/MathJax-dev,dpvc/MathJax-dev,dpvc/MathJax-dev