reverted MathJax-related changes in conf.py, sinc e they didn't help anything.
reverted MathJax-related changes in conf.py, sinc e they didn't help anything.

liuqx315/Sundials,liuqx315/Sundials,liuqx315/Sundials,liuqx315/Sundials,liuqx315/Sundials,liuqx315/Sundials